To win a pack of Prime Colours, Find at least 2 of the years and the two numbers in the sum. Reply to the right post and I'll send cards to the first 2 people to get correct responses. Happy new year!!
The general theory:
What must be true about a graph with edges labeled with inequality signs so that the nodes can be labeled with distinct real numbers that respect the inequalities between adjacent nodes?
How does this pattern grow?
Have a play with the base and index buttons in my virtual Dienes Blocks to create your own.
mathsbot.com/manipulatives/b…
CHOP = cut off a square from a non-square rectangle cuts leave another rectangle. One might be able to keep chopping.
Only 1 chop is possible on a 1x2 rectangle.
What are the dimensions of rectangles that allow for 3 chops?
How many essentially diff rectangles allow for 10 chops?
In Evenastan, factor trees for the number 200 can yield different final sets of e-primes.
What's the smallest number in Evenastan that factors into e-primes in more than one way?
Developing number sense calls for two possibly opposing approaches.
1) Drilling the surface
2) Exploring the depths
Prime Colours is a way to do both. Let's see how:
Do you have students for whom the text versions of the numbers are getting in the way of their relationship with those numbers?
This is a great system to show them that there is a way for them too.