Pick The Primes

Pick the prime fruit from the tree as quickly as possible.

Level 1 Level 2 Level 3 Level 4 Level 5 Description Help More Number Activities

This is level 1: pick prime numbers in the range 1 to 16.

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Basket

Your job is to pick the
prime numbered fruit from
the tree by clicking on them
as quickly as possible.

Start

All the prime numbers have not been picked yet. Keep trying.

You have tried to pick a numbered fruit that is not prime.
Try to remember that is not prime.
Try Again

Check

This is Pick The Primes level 1. You can also try:
Level 2 Level 3 Level 4 Level 5

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Comment recorded on the 23 September 'Starter of the Day' page by Judy, Chatsmore CHS:

"This triangle starter is excellent. I have used it with all of my ks3 and ks4 classes and they are all totally focused when counting the triangles."

Comment recorded on the 25 June 'Starter of the Day' page by Inger.kisby@herts and essex.herts.sch.uk, :

"We all love your starters. It is so good to have such a collection. We use them for all age groups and abilities. Have particularly enjoyed KIM's game, as we have not used that for Mathematics before. Keep up the good work and thank you very much
Best wishes from Inger Kisby"

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Description of Levels

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Level 1 - Pick prime numbers in the range 1 to 16

Level 2 - Pick prime numbers in the range 17 to 37

Level 3 - Pick prime numbers in the range 38 to 61

Level 4 - Pick prime numbers in the range 62 to 99

Level 5 - Identify numbers as being either prime or composite up to 144

More on this topic including lesson Starters, visual aids, investigations and self-marking exercises.

Answers to this exercise are available lower down this page when you are logged in to your Transum account. If you don’t yet have a Transum subscription one can be very quickly set up if you are a teacher, tutor or parent.

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Currently the fastest time for this level (Level 1) has been achieved by Obond20 with a time of 0:05 (that is 5 seconds) on Friday, January 11, 2019. Can you beat that? If you can make sure you claim a trophy because that is how fast times are officially recognised.

Obond20

0:05

Example

The video above is from the wonderful Corbettmaths.

Answers to this exercise are available lower down this page when you are logged in to your Transum account. If you don’t yet have a Transum subscription one can be very quickly set up if you are a teacher, tutor or parent.

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