Color four sheets of graph paper yellow and glue them onto poster board.
Cut one of these sheets of graph paper into 10 units that measure 1-by-10. Cut two of the sheets into 100 blocks that measured 10-by-10. Cut the final sheet into one blocks, where you cut out each individual square.
Make a place value mat to teach trading and borrowing in addition and subtraction by dividing an 11--by-17 paper into three equal sections. Label the first section to your left the hundreds and glue or draw a picture of a hundred-unit block. The next section should be labeled the "tens" with a tens block and the final section labeled "ones" with a one block.
Fold one of the strips in half. Label each half 1/2 and cut it at the fold.
Fold a different colored strip in half and then in half again to make 1/4. Label each portion 1/4 and cut at the fold. Follow a similar procedure (except with more folds) to make 1/8 and 1/16.
Measure the sentence strip and divide the total measurement by three to make the 1/3 piece. Make a pencil mark where you will need to make the folds. Fold at the pencil marks, label each portion 1/3 and cut at the folds.
Cut two more 1/3 pieces using your first ones as guides. Then fold those one 1/3 pieces in half, cut and label 1/6.
Write on a paper plate 12 at the top, 6 at the bottom 3 on the right and 9 on left. Fill in the other numbers evenly around.
Cut out of colored paper one long arrow and one short arrow to be the hands for the clock. With a brass fastener carefully poke a hole through the hands.
Poke a hole through the center of the paper plate with your brass fastener and attach your hands to the clock.