STARTER
Add the next three multiplication sentences to your counting stick.
Can you cover some of them with a piece of paper and still complete your 'Chant Its'?
WARM UP - Time Yourself!
PARENT WARNING: The strategy in this lesson is not what us adults were taught at school (it's all so different isn't it?). However, it is a wonderful way of helping our children to understand what is happening in the calculation - it will also support them tomorrow in trickier problems. I have broken it down into small steps but if you would like anymore support please get in touch. Miss Robinson = )
Understanding
Multiplication through Pictorial (picture/drawing) Methods
GUIDED MODEL: 13 x 3
You will need:
- a piece of paper
- a pen/pencil
- Two coloured pens/ pencils (when drawing your tens and ones)
- 1. Split your paper in half and label one side 'Pictorial’ (This is where you draw what the calculation looks like). Label the other side ‘Calculation’
2. In the pictorial side, draw a place value grid and in the
calculation side, write out the calculation that you are going to solve (this
is called Formal Written Multiplication)
Don't forget to leave a gap for any
exchanges (tomorrow's lesson)
3. 13 x 3 simply
means "13, three times" or "three lots of 13" or
"13+13+13" so notice that I have three sections in my place value grid.
4. You know that you need three lots of 13. So split your place value grid
into three sections, and in each one, draw the number 13 using your coloured
pencils.
Can you see how I have drawn 13 three times?
5. Now you can solve by adding the ones then adding the tens
6. Notice
in the calculation side, we multiplied the ones (3 x 3) and placed the '9' in
the ones column.
We
then multiplied the tens column (10 x 3) and place the 30 underneath.
YOUR TURN (the number of groups tells you how many sections to draw in your place value grid)
CHALLENGE
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