Students solve a complex addition problem on one side and a subtraction problem on the other, then place the alien "mouth" ( is greater than ) facing the larger number. 4. Interactive Visualization: Number Line Navigation
). They must first add these together and then determine how much more is needed to reach using regrouping. 2. Deep Space Subtraction with Regrouping
To make this tangible, you can create cards with these types of "Alien Equations": igry dlia 2 klassa slozhnye primery innoplanetaninami
Provide students with two "alien fuel cells" (numbers like
Help the alien "Zork" navigate through an asteroid belt by calculating the distance. Students solve a complex addition problem on one
Compare the total gems from two different galaxies. Complex Example: Is
Use "Alien Base 10" blocks (visual aids) to show how Zork "breaks down" a ten to subtract from the ones column. For example, to solve , you must borrow from the tens to turn 3. Galaxy Comparisons: Greater Than / Less Than Aliens are collecting "Star Gems" from different planets. They must first add these together and then
Subtract the weight of asteroids to clear a path. Complex Example: