This video covers:
- How to put your calculator into TABLE mode
- How to display the first 20 terms of the 18x table on the screen
- How to mouse up and down the table
This video covers:
Mathematical Language Covered
You will need:
Creating the Puzzles
Give out 2 pieces of card each. Create your choice of sequence, write it on the coloured side of the card. On the back write F(X)= and the function you used.
Discuss boundries – numbers under 10. (I should have set more – no decimals and no division yet. But it did make life interesting!
As they produce the cards, check the function – if it isn’t in simplest form, then simplify it with them and write that version underneath. Point out that their friends won’t be able to guess any more complicated version of the rule. eg if the rule they used was F(X)= 2X+3X+1 then the friends will guess 5X+1
If you think any of them are quite difficult, give them one or two stars. This will let the pupils self-differentiate.
Solving the puzzles
Put the cards down SEQUENCE SIDE UP and the pupils choose which one they want to do. Try to guess the F(X), key your guess onto the calculator, can you make that exact sequence? Once you have made it, turn over and check the rule on the card. Then initial the front of the card to note that you have done it.
Plenary:
What was easy? What was more challenging? Do we need another lesson on this (My group decided they found the minus ones harder so we pencilled in a lesson on handling negative numbers.