Multiplying Decimals Lesson Plans

Calculator games for maths students of all ages - Numeracy & Maths ...

Earlier this year we had the pleasure of having Michael Ymer visit our school and show us some brilliant strategies for teaching

maths. I would highly recommend him for those that need to revisit the fun and simplicity of teaching maths. Here are some of his calculator games he shared with us.

While calculators can be used for simply checking written calculations, teachers need to take full advantage of the potential of calculators as a teaching and learning tool.

Below are several calculator activities that provide the opportunity for students to take risks and investigate basic concepts in mathematics.

Children can work individually with a calculator or take turns with a partner. The constant function key [= button] provides the opportunity for children to practise their counting skills and see patterns appropriate to their developmental level. Let’s say a student would like to count by threes starting from zero. If he/she enters 0+3= and then continues to press the = button the display will go up by threes. Using a 100 number board and a transparent counter to help follow the patterns works well. As students become familiar using the constant function key they may wish to close their eyes and guess the next answer…. guess the next several answers with their eyes closed as they press the constant function key.

Variations

Investigate using the constant function key and all four operations. It’s great to practice doubling, tripling, halving, decimals and negative numbers.

Change it – Place value focus. [All levels]

Partner activity where like ability pairs take it in turn to enter a number into the calculator and change digits. For example, one child creates a number and enters it. Lets say 342. He/she then asks the other child to change a digit. For example, change the 4 into a 7. The partner then needs to + 30 and the number becomes 372. Swap over and the activity continues. The students need to determine the value of the digit that is being changed. Place value materials such as MAB may need to be used to help students see the value of digits in different places. If a mistake is made the game simply continues with the new number.

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