Start At/Get To provides another avenue into addition. Students are given a number line with all the numbers identified except two - one that is the "start at" number, and another that is the "get to" number. The student begins by using the surrounding numbers on the number line to fill in the missing numbers. Next, the student counts from the "start at" number to the "get to" number. Finally, the student uses those numbers to create an equation, in the form of "Start At + Counted Number = Get To" (such as 12 + 3 = 15). This activity introduces the concept of counting on (which is more efficient than counting all), as well as the tools of number lines and equations.
If you're interested in seeing more of games in the TERC: Investigations curriculum, you can check out quite a few of them online.
Bonus feature: The following blurb was written by Sima Misra, the TBS Differentiated Curriculum Instructor who is focused on math this year. Sima is continuing the 4th/5th math club she launched last year (based on her experience launching a similar program in the 6th grade the prior year), and shared this blurb with the 4/5 teachers for their blogs:
The 13 students in 4th/5th grade Math Club today were very engaged with a new problem, game, and puzzle today. Some of the boys in particular enjoyed the new game Intersections, trying to make lines intersect as many other lines as possible. Many girls and boys pondered the Growing Staircases problem, a classic pattern-finding activity where students try to derive an algebraic function to predict the number of blocks necessary to build staircases, by drawing pictures, using color tiles, and writing expressions. Some kids were intrigued to find out what an "nth stair" is! A few students worked on Puzzles, including figuring out how many different shapes one can make with 4 regular hexagons. How many do you think there are?
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