What’s the value?
Work out the value of the tree, the snowman and Santa. What is each picture worth?
What do you notice? Where would be a good place to start? Which row would help us to solve the problem?
Encourage children to use their reasoning skills and make deductions rather than use trial and improvement. Talk aloud and model your thinking.
Is Digit Dog right? Does using Numicon® help solve the problem? What do you think about Calculating Cat’s idea?
What are you going to do next? What do we know?
Does using pegs make it easier? What do you think about Calculating Cat’s idea? Can you work out the value of Santa? How?
Could you look at a different column instead of the middle one?
What if.……..you changed the totals?
This challenge was inspired by Bernie Westacott in his conversation with Craig Barton. Watch the podcast – it’s well worth it.
http://www.mrbartonmaths.com/blog/bernie-westacott-teaching-maths-with-visuals-and-manipulatives/
Digit Dog Challenges 