Tuesday, February 11, 2020

Large Bead Frame - Multiplication


Today I presented multiplication on the large bead frame to Nito.  He was so excited to do this and actually said it was fun! Ha.  Go figure, math being fun.  He had the biggest grin on his face when he would check his answer and get it right.  The picture above is the large bead frame.  It has categories up to 1 million, unlike the small bead frame which only goes to 1, 000.
Unfortunately, I didn't have (or honestly can't find) the paper specifically for the large bead frame, so he had to use the small bead frame paper.  I just added the columns for tens and hundreds for him.  Ok, so here is his problem.  4,346 x 4.  He first starts with decomposing the number on the paper.  He starts with the units, which is 6.  Then he moves to the tens and records it as 40.  When he has completed decomposing, he makes brackets around the number and writes down what he is multiplying by, which is 4 for this problem.

Now it's time to move the beads on the frame.  The first number is units times the multiplier, which is 6 x 4, or 24.  He moves 4 unit beads to the right and then 2 ten beads to the right to form 24 on the frame.  

He moves to the tens.  4 x 4 which is 16.  He moves the ten beads until he reaches 10, then moves 1 hundred bead to the right, pushes the tens back to the left and keeps counting until he reaches 16.  

The next category is hundreds.   The same process is done, moving a thousand bead when needed.

He finishes up with the thousands and records his answer on his paper.

Here is his paper when he is finished.  He also did a few other problems since he thought it was so much fun and he got them all right.

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