This PowerPoint provides a unique way for students to create equations in one variable to solve. The Oral & Mental Starter page asks students to use “text chat” to share their answers, but other methods could be used. Students are asked to solve a number tower addition puzzle (involving 6 boxes) when all numbers are given, and then one number is removed or replaced with a variable and students set up and solve equations to find the missing values. The PowerPoint offers a number of towers to solve, but would be improved by providing solutions and steps to find the solutions. Students who enjoy puzzles would appreciate this creative way to develop an equation.