How Many Birds

  Have names of animals and the number of teeth they have. How Many Teeth   Show students the first two{...}

Students are to solve:   How many 3-digit numbers can you make with 4-counters using an abacus?    Get students{...}

Provide groups of 2-3 students with a large quantity of Unifix or interlocking cubes (at least 120 cubes). Allow students{...}