There is a powerpoint, a poster and a order list for the questions on the powerpoint.
It can be done with just the posters. The purpose of the powerpoint is to check the answers.
Practice numbers, especially 1 to 40.
Put students into groups.
Two ways of using the powerpoint. Ask the question from the list, have one student from each group come with an answer. After a time limit has passed or all groups have answered then click on the powerpoint to reveal the question and then the answer. If your class is lower leveled then click to reveal the question as you ask them. Make certain when students come to answer they point to the number on your poster and say the number. You can reward teams for being the fastest or use random point cards to increase motivation.
Afterwards you can have the students locate all the remaining numbers.
The little L button can be pressed when you need to end the activity. It will say last and then clicking it again will remove the last message.
There are 24 questions.