Mental and Oral Starter Wellbeing exercise. Short relaxation/breathing exercise, then ask students to write down something in life they are grateful for on a piece of paper and then scrumple it up into a loose ball.

Main Students then line up looking towards the door from the opposite side of the room. They take turns trying to hit the door with their ball (stick picture of wicket on door). Teacher to prevent them with a cricket bat. Record how many students are successful. Ask, “Based on our experiment, what is the probability of a Grade 7 student bowling the teacher?”Hand out the cricket spinners game for students to cut out and play in pairs. Get them to conduct their own experiment and record their results. Ask them how we could make the answer more accurate. Take in the results for scoring a 6 from all the pairs. Calculate the new probability. (Hopefully it will be more accurate!)

Plenary Give them the exam question to do, so they can see an example of what they could be tested on. Get one of the students up to the IWB to go through. Present printed cricket balls to the best students to stick in book.

Differentiation Opportunities in class discussions for higher level students to contribute ideas re accuracy of results, etc. What would be the perfect experiment we could conduct, eg. All the Grade 7 students in the world, etc.

Objectives To estimate probability from playing cricket

Keywords experimental probability, fair, biased, wicket

Lesson Plan – (Probability) Grade 7

Write down on a piece of paper, something that you feel grateful for in life.

12/04/2023

To estimate probabilities from playing cricket

Experimental probability, fair, biased, wicket

Bowled!

Numberof runs

tally probability

1

2

4

61

2

6

4

Experimental probability Cricket game

• Cut out the spinner

•Spin it 50 times and record your results

Use the spinner to see how many runs the batsman scores.

Num ber of the 20 m atchsticks that have fallen across a line

5 7 6 4 6 8 5 3 5 7

ExperimentBarry is doing an experiment.

He drops 20 matchsticks at random onto a grid of parallel lines.Barry does the experiment 10 times and records his results.

He wants to work out an estimate of probability.

(a) Use Barry’s data to work out the probability that a single matchstick when dropped will fall across one of the lines.

Show your working.

(b) Barry continues the experiment until he has dropped the 20 matchsticks 60 times.

About how many matchsticks in total would you expect to fall across one of the lines?