This resource is for KS4 students. It consists of a presentation, a worksheet and a couple of handouts. Worked solutions to all the questions on the worksheet are included in the presentation.
The model for conditional probabilities are the balls in a bag type questions, where the first ball selected is not placed back in the bag. Students learn why the contents of the bag for the second selection depends on the outcome of the first. The different probabilities are then deduced. Student understanding is checked by a scaffolded activity that requires students to complete 3 tree diagrams.
The use of tree diagrams to find the probability of two events is then explained. Student understanding is checked by mini white board work.
Students then finish the lesson by completing a worksheet consisting of 2 questions with a tree diagram onto which the probabilities need to be added and 3 questions where students need to construct the tree diagrams from scratch.
Get this resource as part of a bundle and save up to 50%
A bundle is a package of resources grouped together to teach a particular topic, or a series of lessons, in one place.
Something went wrong, please try again later.
This resource hasn't been reviewed yet
To ensure quality for our reviews, only customers who have purchased this resource can review it
Report this resourceto let us know if it violates our terms and conditions.
Our customer service team will review your report and will be in touch.
£2.50