Short lessons
Seven things a printed sheet cannot do. A clock’s hands moving. Ten pennies against a dime. One bar cut into quarters. An array turned on its side.
What these are for
Not a course, and not organised by grade. You get here from an activity when something is not landing, and every activity that has a lesson links back to it. Each one is here because movement earns the screen: the fix for reading 2:30 as “half past three” is watching the short hand creep, and the fix for “the bigger coin is worth more” is seeing ten pennies against one dime. Every lesson also hands the figure over and asks you to make something with it.
How a clock works
Two hands, and the short one is the one that catches people out.
Practice it in Clocks and Rulers, Clocks and Time, Time to Five Minutes, Time and Data
Two ways to divide
The answer comes out the same. What the answer MEANS does not.
Practice it in Draw the Story, Fact Family Forge, Division Descent, The Standard Algorithm
What the equals sign means
It means “the same as”, not “the answer comes next”.
Practice it in Number Friends, Take It Apart
Jumps of ten
A jump of ten is the same size wherever you make it.
Practice it in Tens and Ones, The Hundred Board, Count Up to the Target, Hundred Line Hop
Why one half and two quarters are the same
More pieces does not mean more.
Practice it in Halves and Quarters, Fraction Number Line, Decimal Drop, Equivalent Fractions, Same Size Pieces, Fraction Foundry, Mixed Number Line
Turning an array
Three rows of eight is eight rows of three.
Practice it in Arrays and Equal Groups, Area and Perimeter, Array Architect, Times Table Tower, Times As Many
How coins work
Four coins, and the smallest one is not the cheapest.
Practice it in Dimes and Pennies, Money Math