problem
Next-door Numbers
Florence, Ethan and Alma have each added together two 'next-door' numbers. What is the same about their answers?
Place the numbers 1 to 6 in the circles so that each number is the difference between the two numbers just below it.
Order these four calculations from easiest to hardest. How did you decide?
Can you find a general rule for finding the areas of equilateral triangles drawn on an isometric grid?
Quadratic graphs are very familiar, but what patterns can you explore with cubics?