welcome to "newsline." i'm keikichi in tokyo. here are some of the stories we are following this hour. selling pressure by investors triggers another big drop in the tokyo stock market as experts think things will remain volatile. and teachers in africa find new ways to improve the skills of their colleagues as they work to develop their educational system that's short on resources.

and experts on a japanese government panel have come up with a new suggestion to halt the build up of contaminated water for the damaged plant in fukushima. watching the tokyo stock exchange over the past week has been like watching a ride at an amusement park. the market has been going up and down and experts say there's no sign this ride is over yet. take a look at what's happened since january. the benchmark nikkei index rose more than 50% in five months. then last thursday, it plunged, chalking up the biggest loss of the year. and on this trading day, it dropped again, marking the year's second biggest loss. the nikkei index closed at 13,589, a drop of 5.15%, monthly low. investors saw the value of their holdings go down by 13% in a week. that basically erased most of

the gains they made in may. analysts say investors are staying cautious about the downward trend in global stock markets. government leaders are asking everyone to keep the big picture in mind. >> translator: we should maintain our calm and composure on what's happening in the markets because our economy is showing signs of steady improvement. the government aims to bring deflation to an end and spur growth through initiatives led by the private sector. >> now while chief cabinet secretary is calling for calm, tokyo stock exchange officials waving red flags. foreign investors who bought stocks and helped raise share prices were the net sellers last week. the officials say it sold first weekly net selling by foreigners in three weeks. they say selling out-paced buy by more than $160 million and

they say last week's stock trade by foreign investors hit a record high. selling and buying by foreign investors topped $110 billion in a week. that's the highest level since the stock exchange began keeping track in 1974. we asked head of capital management for his analysis of the nose dive in the tokyo stock market. >> recent in the japanese equity market is a reaction from rather over-optimistic trend which continue for nearly six months. today the volatility was further fuelled by yesterday's fall in the european and u.s. market. and also by the rise in the yen. i believe this volatility will remain for the next couple of weeks until we confirm the outcome of the power selection through this july.

if mr. abe will win by landslide victory, then he will be able to gain strong leadership and able to pursue the really duration and structural reform and hopefully leading to the economic recovery. when we are able to confirm this trend, the market trend will return to suitable trend from sensitive mood. until then, the market participants will wait and see how things develop. officials at the ugs commerce department downgraded the growth for the quarter. it grew at 2.4% from the previous quarter. that's down 0.1 per sen

substantial points from last month. the housing investment growth increases 12.1%. and here are the latest market figures. leaders of african countries are flying into japan for a summit on the future of their continent. the tokyo international

conference on africa is held every five years and will be on monday. representatives from about 50 african nations will take part in the three-day summit just outside of the capitol. shinzo abe will have separate meetings with 40 of them on the sidelines of the conference. the tnzanian is helping them through ticad. japan started the meeting in 1993. abe says his government will give them grants to help build roads and irrigation facilities. they started to negotiate an investment treaty. a deal would make it ease your

for japanese firms to operate in tanzania. >> african governments are trying to achieve universal primary education between 1991 and 2010. child enrollment rates grow from 54 to 76%. the southeastern nation is a high achiever. more than 90% of children now receive basic schooling, but the challenge remains to deliver quality education. >> reporter: conditions are tough at this primary school in the zambian capital. children study without electricity or water. pupils of different grades share one classroom. they are aged from 9 to 18. they even share their few textbooks.

many people in zambia are too poor to send their children to state schools. it's costly to buy compulsory uniforms and books. so parents have set up free schools. such community-run schools make up 1 in 3 primary schools in zambia. the biggest hurdle is finding qualified teachers. mark shikabi is a secondary school graduate. he's a volunteer and has no teacher's diploma. >> we don't know some of the methodologies to use. it affects the children as well. >> reporter: the problem goes beyond the community schools. education officials say there's a lack of quality teachers

across the board. >> our teachers were graduating with very low skills themselves to go and handle classes in primary schools. because of that, i think it affected the quality of our education in our country. >> reporter: with its limited budget, the ministry makes use of outside assistance. japan is one source of aid. zambia has adopted the teacher training framework that's common in japan called lesson study. this school organizes lesson study programs every two months. teachers from nearby schools gather to observe how the class is conducted. then later, they exchange ideas how to improve teaching methods. a lesson study class is being held at the school. a science class is open for viewing. one of the participants is patricia maphosa. she teaches at a nearby

community school. the children are conducting an experiment using simple props on how changes in temperature affect the state of a gas. >> what happened to the gas? what happened to the gas? yes? >> makes the balloon to expand. >> reporter: the teachers assess how well the class helps the pupils to think for themselves. afterward, there's an exchange of opinions. >> time management. i think it's well covered. especially in the introduction. we took time to introduce it. >> a pupil asked a question. the teacher did not want to answer it himself. he had to throw back the question to the audience.

and the answer was given by the pupils, which is very good. >> reporter: the program encourages interactive classes. for the community schools, it's a new way of teaching. >> i found it very useful in the sense that i didn't know how to go about it. i was finding it a problem. >> reporter: education officials say students' performance improves after their teachers joined a lesson study program. a country's development is often measured by numerical targets. having almost all children in school is one goal. a harder challenge is to improve the quality of education. with their limited resources, zambia's teachers are helping each other move forward. kaori nagao, nhk world, zambia. africa, a continent of

promise and plunder. more than 1 billion people in more than 50 countries form a cultural mosaic. many live in lands rich of minerals, a source of economic growth and conflict. "newsline" is looking at the challenges and the opportunities on this continent in the lead-up to an international conference in tokyo. don't miss our coverage all this week, 8:00 p.m. japan time. experts on a japanese government panel have come up with a new idea to stop leaks of contaminated water at the fukushima daiichi nuclear plant. they say the ground should be frozen. build a frozen wall around the reactor buildings.

they say they should implement the measure by middle of 2015. they also want to pump out the ground water from wells outside of the buildings and release it into the ocean. they hope to gradually reduce the flow of water and stop it completely. the panel members also urged the government to help temco maintain the frozen wall. ministry chiefs in the asia-pacific region may have a chance to hear. one of the officers is getting read to to speak in singapore at an annual conference.

they will hear from the deputy chief of the general's staff. they say he will talk about china's defense policy and areas of cross-border cooperation. analyst expect him to reiterate his claims on the south china sea. japan controls the senkakus. they released an analysis of the asia-pacific issues earlier this week. they say confrontations have spread from the ocean to the air. they say the risk of military conflict is growing. in pakistan, there's been more fallout from wednesday's fatal drone strike. the reported killing in the attack of a key figure, the largest islaislamic militant gr

there is the issue. they say they want to open dialogue with the militants, but if the killing is confirmed, it could have a major impact. pakistani security officials sold nhk that the second in command of the pakistani taliban was among the six people killed by the u.s. drone attack in northwestern pakistan. they wanted him with his connection on a u.s. base in 2009. the attack killed seven americans working for the cia. the u.s. has been offering a five million dollar reward for any information leading to him. the white house, while carefully

choosing it's words, is trying to dress that the drown attack may have produced results. >> if those reports are true, it's worth noting that his demise would deprive them of their second in command and chief military strategist. >> anti-terrorism issues were a major issue in the pac substantial journal election earlier this month. during campaigning, he said he will see a dialogue with the dal ban, rather than resorting to force. pac stanny security-- pakistani it will deal a heavy blow. it could increase the likelihood of the militants actually coming

to the negotiating table. there is also speculation they may go the other way and take a firmer stance, possibly including return attacks. they're desperate for an end to the militant attacks, and it's an issue closely watched by the u.s. and many other nations. experts are delighted over the possible impact of the reported killing. nhk world, islamabad. in myanmar, security remains type afteren buddhist and muslims. hundreds of muslim families have taken shaelter in a heavily guarded buddhist monastery. troo troops patrolled after fears of

wider conflict. >> translator: i just want peace. i just want to do business. the ie lens started after a muslim man dumped fuel on a buddhist woman and she was lit on fire. a violent clash between the buddhists and muslims last year triggered similar outbreaks. in march, over 40 people died fighting in central myanmar. it raises questions of whether the reformest president can successfully integrate the meeian mar minorities if all

remaining sanctions on the country are to be left. wrestles supporters have won reprieve. officials with the international olympic committee have put the sport and two others for inclusion in the 2020 summer games. >> wrestling -- [ cheers and applause ] -- baseball and softball, and with apologies to the others, squash. >> reporter: members of the executive board heard presentations from eight sports federations in st. petersburg, russia. they dropped wrestling from the 2020 games in february. international wrestling federation officials made reforms to try to muster their way back in.

they simplified rules, they abolished draws, and they made matches two three-minute rounds instead of three two-minute rounds. a new point system will encourage attacks. the fight to save olympic wrestling prompted a rare show of unity between the u.s. and iran. athletes from both countries campaigned together. wrestling is a popular sport. japanese wrestlers joined the effort too. the team took home four of the seven gold medals in london. >> this is a success for the wrestling community. and all those who helped us. >> reporter: men's baseball and women's softball also made the short list.

the ioc dropped them after the 2008 beijing games. representatives of the sports merged into one federation to increase their chances of competing. they also made baseball innings shorter, seven innings instead of nine. >> i want to thank all the professional leagues. >> reporter: while squash federation officials celebrated their inclusion on the short list, they made changes to appeal to the ioc. matches are shorter and played on grass courts to improve tv viewing. experts say changing rules to suit the ioc helped the three sports win reprieve. but only one sport can go to the 2020 games. delegates to the assembly will

choose the finalist in september when they meet in buenos aires. nhk world, tokyo. people in london are seeing how mountaineers first conquered the highest peak 60 years ago. a photo exhibition documents the ascent of mt. everest by edmund hillary and tenzing norgay. the sons of hillary and norgay reflected on what their fathers achieved. >> our two fathers went into the unknown. we didn't know if humans could go there without wearing a pressure suit. >> around 4,000 people have climbed everest over the past 60 years.

japanese adventurer miura became the oldest last week at the age of 80. we had a few showers across tokyo today. robert speta is joining us with the forecast. much of japan saw the widespread rain showers today. it brought gusty winds ahead in eastern portions of okiado. high pressure is coming in and bringing in much fairer weather. temperatures in the high 20s as we two through the day here on friday. really warming up. not all of japan is sharing in on this. as we look to the west, it looks like showers will be continuing to linger throughout the day here. we continue to linger here over there towards the west,

southeastern, china. it looks like a lot of showers continuing to fall. a few areas could be seeing up to about 150 millimeters. so really a risk of flooding we have been seeing out here. as far as temperatures, that rainy season is keeping the clouds in the sky. if you look just toward the north, beijing, hong kong as well. hot and muggy for you. sunny skies overhead, but don't be surprised due to that heat throughout the day if we do get a pop up thunderstorm or so. let's look over toward the americas. thunderstorms. we just have that low pressure continuing to linger over the central plains. this is bringing all sorts of moisture. and you see these lines very close together. that is indicating strong winds continuing to flow in. that upper level jet would cause

a negatively tilted jet. it is enhancing the storms and making them quite strong, and there is still a risk of a large tornado, up to baseball side, and you could be seeing straight line winds over 100 miles per hour. especially if you're in iowa or missouri, really coming down out here. you could see 40 to 60 millimeters throughout the day. this is on top of about two to three millimeters that have been falling all week. the low lying areaing near the floodplai floodplains, it's bringing the threat. we have been seeing warm our pump in from the south. that is causing temperatures to

rise. new york getting up to 32. cooler here towards the west. high 20 nstz toronto. the big topic here in europe, it has just been dominating the continent right here into central organizatiportions here. you're going to see heavy rainfall out of this. to the west you see this, you have that counter clock wise rotati rotation dragging in cooler air. france, you have seen temperatures into the lower seesee teens. high pressure is going to push it to the east and temperatures will thankfully start to rebound. in rome, you will still see rain showers. if you want to go somewhere very warm, look at athens. that is your world weather, here is your extended forecast.

and that concludess

edition of "newsline." on behalf of our team, thank you for staying with us.

♪ shohei shigematsu was a new york-based architect whose projects span the globe. his firm's work can now be seen in several countries. like the radical tilted towers in beijing. and milstein hall on the cornell university campus which has the long glass case suspended above the ground. from chio