2D sorting shapes

Tape math questions to a plastic ball using masking tape. Play hot potato, passing the ball around until the music{...}

Launch: How could we measure the length of the classroom?  How could we measure the length of the heater? How{...}

Age 5 to 7 Challenge Level  https://nrich.maths.org/2358 Yasmin and Zach have some bears to share. Which numbers of bears can{...}