初中三年级体育教案

CROUCH  START

First,I want to ask your two questions .

Who runs fastest in 100~meter race ?

OK , he is fastest runner up to now .

However , how fast on earth could the human being run in the world ?

I think no answer forever !

Because there is no fastest one only the faster in the field and track sports .Field and track sports is the king of sports . 100~metre race is the king of the field and track sports .100~metre runner was considered as the fastest person in the world . But , how can we run fast ? It is important that stride length and stride frequency . 100~metre race has the following phases : starting  accelerative running after starting  flying run  and blasting

Today , let’s study 100~metre race start together .

Next , let’s jog three circles and do drills without arm .

Ok . stop .

Let’s play a game . called “ write slogan ”

Method : Get into three groups , relay race . Everybody reaches the finishing line and write a word on the blackboard , then comes back . Passing the chalk to the next one . At last , join all words together to from a sentence as you team slogan . We can see which team dose it best and fastest .

OK , stop , game over , everyone have done it well .

Now , let’s study 100~metre race start . We usually used crouch start in 100~meter race . The crouch technical includes three parts : on your marks   set   shot or go

I’ll give you a demonstration and detail this action . Look and listen carefully .

First ,  on your marks

Reach the starting line . Put the strong foot in front . The other opposite . T     he distance of the front foot form starting line is about one foot and a half . Two feet distance is the same with that . The rear knee close to the ground . Fold four fingers together and separate thumb from other four fingers . Put your hands behind the starting line . The distance of the hands are somewhat wider than the shoulders . The shoulders and starting line are parallel . Look forward , relax your neck .

Second ,  set

Rise up hips slowly . Move the body weight forward . Put the hip are somewhat higher than the shoulders and shoulders exceed starting line .

Third ,   shot or go

Push the hands against ground quickly , at the some time push the feet back fully and swing arm quickly .

Do you understand ?    OK

Attention :

1.       Body weight is supported by the hands , one foot and one knee when you are on your marks .

2.       Body weight is supported by the arms and the front foot , concentrate your attention when you are set .

Ok , give your ten minute to practice . I’ll teach you one by one .

OK , stop . Who can imitate this action ?  

Next , let’s play a game again to strengthen crouch start .

All students are divided into two groups . Do crouch start back to back . When hear odd number , right side students run and other side catch , when hear even number , do opposite action . The loser carries the winner on his back to the starting line . are you clear ?

OK , game over  , stop

In the end , let’s run comfortable one lap and do some relation exercise . follow me , deep breathing , shake your thigh and arms , knock your calf and shoulders .

OK , we have learned crouch technique in this lesson . Let’s recollect together . Crouch start technical includes three parts :

First part : pay attention to the position of foot , hands and shoulders .

Second part : supported point of body .

Last part : the relationship between hands , feet and ground .

OK , everybody has done it actively in this lesson .

I hope everyone could do exercise after class .

Class is over , goodbye students !