Numbers to 1000

Second graders have been working so hard on composing and decomposing numbers with in 1000.  They have been bundling 10s and 100s, writing numbers in expanded, standard, and word forms, and skip counting forward and backwards within 1000.  Last week, the second graders had to put all the skills they were practicing to the test and solve the Web of Ten.



The reading garden had string stretched all across, in every direction.  Attached to each point was a clue that had the students adding and subtracting groups of ten.  For instance, one clue might be add 20 tens, and the students would add 200 to the number.  Students had a start number and followed the clues in the web to try and get a number at the end....a number that if correct would be the combination to unlock a reward.  Students moved up and down through the web, they followed a binder clip along the string so they could follow the clues in order.  The second graders worked as a team to figure out the math and discover the combination.




They worked so hard.  The second graders were ecstatic to hear the click sound of the combination 1205 working.  In the locked box, they found a game of Giant Jenga.  The entire class joined the game of Jenga.  But, of course, we didn't just play...we used the game the review math concepts.  Every Jenga block had a color.  Students had to solve the math problem that coordinated with that color of the block in order for the block to be placed on the top of the tower!  The second graders and first graders had different problems to solve but everyone was having fun doing the math!