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The best way to work on the defensive stance is to practice. Get as much practice on the field as you can, and work on fielding both high and low balls with a friend. Be sure to get into an athletic, game-like defensive position, even in practice.
When practicing fielding slow rollers, use as much hand and as little glove as you can without hurting yourself. The line between using two hands and just your bare hand is a fine one. Save the bare hand for balls hit slowly enough that you can avoid hurting your hand and can easily field the play. When the ball is traveling more quickly, use your glove
Practice fielding slow rollers with a partner. Toss slow rollers back and forth,
and remember to charge the balls and release the throw quickly.
Have a teammate or coach hit balls to your left and right at ever increasing
distances. Work on getting in front of the ball so you can avoid using the
backhand. Balls hit at a distance requiring the backhand become that
much easier, since you gain experience getting close to the ball.

Ground ball backhand
Skills Drills
Distance drill
Have a teammate or coach hit balls to your left and right at ever increasing
distances. Work on getting in front of the ball so you can avoid using the
backhand. Balls hit at a distance requiring the backhand become that
much easier, since you gain experience getting close to the ball.

Position drill
Get into the actual fielding position for a backhand-knees bent, your dominant side foot slightly in front of your non-dominant side foot, glove turned over, palm-side down and low to the ground. Have a teammate throw some short hops and field them with your glove, staying in the backhand fielding position.
Quick grip drill To make great throws every time, you need to use the right grip. Practice by tossing the ball a few feet in the air. As soon as the ball hits your glove take it out in the proper grip. Your grip should be the same every time: with your index and middle finger over the wide part of the seams (the four-seam grip).
Distance drill Play catch with a teammate to improve your throwing ability. Vary the throwing distances.

Field a pop-up

Practice solo
Practice! Practice! Practice! You have probably heard it before, but nothing beats practice when it comes to getting good at catching pop-ups. When you are practicing alone, just toss the ball high into the air. Think about approaching the ball quickly, catching it smoothly, and making a quick transition to the throw.

Ground ball jump step
Skills Drills
Hundred foot drill
Practice the jump step with a partner. Stand 100 feet apart and throw long ground balls to each other. Field the balls and take a jump step to throw the ball back to your partner.

Stationary drill Try practicing the jump step simply by running up to a stationary ball, fielding
it and taking a jump step. You do not need to release the ball to practice the
basic motion.
You can practice the jump step simply by lofting the ball high into the air, catching it and taking a jump step. You do not need to release the ball to practice the basic motion.

The crow hop
Skills Drills
Distance drill
Practicing with a friend, stand at gradually increasing distances and throw
grounders back and forth. When you throw, take a crow hop Just shift your weight
back the same way as you do after fielding a ground ball. IT's just a little step and hop before you throw the ball .

Standard grip
Skills Drills
Balance the bat
Practice holding the bat just above the knob with a proper grip and get used to the length, weight and balance of your bat. A bat you can swing comfortably is better than a heavier bat that will force you to choke up.

The standard square stance
Skills Drills
Adjustment drill
Start with the basic stance, then adjust it to what feels most comfortable to
you as you get some experience in the batter's box. Develop a feel for what
works for you.
Accuracy and timing drill
Practice getting into the stance over and over again. Focus on accuracy and
timing. When you hear the words "Batter up!" you want to look smooth, like
a pro.

The linear swing
Skills Drills
Batting tee
Practicing with a batting tee allows you to break down the motions. Once you get the feel for the perfect swing, progress to full speed swinging until you are swinging at "game" bat speed.

Mirror drill Watching yourself in a mirror while you swing helps. Slow it down to see
each part of the motion. Always concentrate on the mechanics of your
swing...and stand far back from the mirror!
Pivot stance sacrifice bunt
Skills Drills
Strike zone
Only bunt pitches in the strike zone.


Helping students to plan before the lesson so that they:
   are aware of any known medical conditions
   consult relevant school policies such as accident procedure, guidelines on kit, jewellery, long hair etc.
   involved in taking responsibility for checking all apparatus, equipment and the condition of the hall, e.g. after it has been used at dinner times
Helping students to plan for the lesson so that they
   plan tasks appropriate to the age and ability of your pupils

   plan a good structure to the lesson; warm-up, floorwork, apparatus work and cool-down;

   plan for differentiation;

   ensure that apparatus layout is safe, including; check landing areas, storage of apparatus and safe techniques for lifting and transporting apparatus; intended heights from which children will be descending; linking mechanisms for combined apparatus; spacing; suitability for age and ability range;

   plan apparatus layout, key questions will include;
   - how many 'stations' are needed? consider the number of pupils and the amount of apparatus available;
   - where will the apparatus be placed? consider size and shape of the hall
   - is the apparatus appropriate to the age and ability of the pupils? consider if it is challenging, if it promotes the
   development of children's skills, confidence and movement competence
   - how will the groups be rotated around the apparatus? consider the variety of work from one station to another,
   avoid repetition on successive stations; children should walk from one station to another;
   - are the landing areas safe? consider if there is enough room; avoid walls, radiators, tables, chairs, the piano etc.;
   are pupils landing from different directions likely to collide?
   - is the apparatus specifically designed for gymnastics? avoid improvising with chairs etc.
   - have the stations been safely assembled? teacher with student must check this before any child starts work;
   ensure no child starts working until all are ready

   helping students during the lesson so that they;
   - extend pupils knowledge of health-related exercise whenever possible
   - knowledge and understanding of strength
   - flexibility
   - different major muscle groups
   - body tension
   - posture
   - develop pupils' social skills
   - safe practice
   - shared responsibilities
   - moving, assembling/disassembling apparatus
   - sharing space and apparatus
   - planning apparatus layout
   - supporting each other's body weight
   - creating sequences with a partner and small groups

   learn about teacher positioning throughout the lesson and can see all the pupils at all times
How Pole Vaulting Works
Pole-vaulting is an incredible sport to watch. The vaulter's technique can be so fluid and graceful, the result of a highly studied technique designed to optimize energy conversion.
In this edition of How Stuff Works we will learn a little bit about the history of pole-vaulting, and then we will explore the physics of pole-vaulting.
History of Pole-Vaulting
The pole vault originated in Europe, where men used the pole to cross canals filled with water. The goal of this type of vaulting was distance rather than height.
In the late 1800s, colleges started competing in the pole vault. Originally the vaulters used bamboo poles with a sharp point at the bottom. They competed on grass, planting the point in the grass (because holes were not allowed back then), vaulting over a pole and landing back on the grass. In the 1896 Olympics, the record, set with a bamboo pole, was 10 ft 6 in (about 3.2 m).
As heights started to increase because of improvements in technique and materials, mats started to be used for landing. Now the modern pole vault takes place on an all-weather track surface, with a box for planting the pole in, and plenty of padding in the landing pit. Modern poles are made of advanced composite materials like carbon fiber. The world record today is over 20 feet!
Vaulting Pole
The vaulting pole is a very advanced piece of equipment. It is constructed from carbon fiber and fiberglass composite materials in several layers. The pole must be able to absorb all of the vaulter's energy while bending, and then return all of that energy as it straightens out. These advanced composite materials waste very little energy when they bend, and have a good strength-to-weight ratio.
A 200-lb (90.72 kg) pole-vaulter needs to put about twice as much energy into the vaulting pole as a 100-lb (45.35 kg) vaulter. But the vaulting pole has to bend about the same amount, this means that the heavier vaulter needs a stiffer vaulting pole than the lighter vaulter. So, the stiffness of the vaulting pole must be carefully tuned to match the weight of the vaulter.
Anything that helps the vaulter run faster on his approach will help him go higher. Reducing the weight of the vaulting pole is an obvious way to help the runner go faster. The carbon fiber poles used today are much lighter than the wood, bamboo or metal vaulting poles sometimes used in the past.
Physics of Pole-Vaulting
First, we'll figure out his kinetic energy when he is running at full speed, and then we'll calculate how high he could vault if he used all of that KE to increase his height and, therefore, his potential energy (PE) without wasting any of it. If he converted all of his KE to PE, then we can solve the equation by setting them equal to each other:
1/2 m v2 = m g h
Since mass is on both sides of the equation, we can eliminate this term. This makes sense because both KE and PE increase with increasing mass, so if the runner is heavier, his PE and KE both increase. So we'll eliminate the mass term and rearrange things a little to solve for h:
1/2 v2 / g = h
Let's say our pole-vaulter can run as fast as anyone in the world. Right now, the world record for running 100 m is just under 10 seconds. That gives a velocity of 10 m/s. We also know that the acceleration due to gravity is 9.8 m/s2. So now we can solve for the height:
1/2 x (102 / 9.8) = 5.1 m
So 5.1 meters is the height that a pole-vaulter could raise his center of mass if he converted all of his KE into PE. But his center of mass is not on the ground; it is in the middle of his body, about 3 ft (1 m) off the ground. So the best height a pole-vaulter could achieve is in fact about 20 ft (6.1 m). He may be able to gain a little more height by using special techniques, like pushing off from the top of the pole, or getting a really good jump before takeoff.

Figure 1. Animation of pole vault
In Figure 1, you can see how the pole-vaulter's energy changes as he makes the vault. When he starts out, both his potential and kinetic energy are zero. As he starts to run, he increases his kinetic energy. Then, as he plants the pole and starts his vault, he trades his kinetic energy for potential energy. As the pole bends, it absorbs a lot of his kinetic energy, just like compressing a spring. He then uses the potential energy stored in the pole to raise his body over the bar. At the top of his vault, he has converted most of his kinetic energy into potential energy.
Our calculation compares pretty well with the current world record of 20 ft 1-3/4 in (6.15 m), set by Sergey Bubka in 1993.
Now that we've done this calculation, let's look at what a vaulter can do to try to break the record. They have two main ways to increase the height of his vault. One is to increase his running speed, which increases the amount of kinetic energy he can use. The other is to make more efficient use of the energy, perfecting his technique so that absolutely no energy is wasted.

danny ( golf team range swings)