Playful STEM

In this activity, students are exposed to three different systems of tally marks used in various parts of the world. Students learn the "why" behind tally marks by exploring the different ways that tally marks are used. The activity consists of four parts. In part one, students use the tally mark systems to generate a given number. In the second part, students must look at a number constructed using tally marks and deduce its identity. In part three, students create and identify their own numbe

Your students can go for the gold in this addition and subtraction concentration game! This download includes 24 cards for playing addition and subtraction concentration -- 12 problem cards and 12 answer cards. All of the problems require students to carry or to borrow and help to reinforce regrouping skills. How to Play: Cut out playing cards. Lay out cards face down in two separate groups – one for problem cards and one for answer cards. Flip over two cards – one problem card and one answer