Bulding stairs
74
skips
skips
26
questions
questions
Act One
 Teacher note
Act Two
 Teacher noteEach square is 1 by 1in
Desk is 18 by 24 inches
Students can use sequences ex. 1 + 2 + 3 + ... + 18
Discover that the function is quadratic
Approximate area under the curve  FileStairs Lab
Act Three
 Teacher noteFor creating a staircase with 18 steps you will need 171 square blocks.
(1+ 18)times 9
help students understand distributive property
19 times 9
can be written as (10+9) times 9 = 90 + 81 = 171 square blocks  VideoAnswer to the video  18 steps  171 square blocks can fit 24 by 18 inches desk
Sequel
show 26 more questions


How many total tiles will there be at the end? How tall will the last pile be at the end? What color will the last one be?



How many yellow pieces do you need to build a 100step stairs?If you have 9999 yellow pieces,how many steps has the biggest stair you can do



How many squares will be on the desk if she continues all the way across?


















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