This is a "card" to printed on cardstock that will contain several formulas/equations that one learns in a Physical Science course. Examples such as F=ma and V=d/t... the triangles on the top can be cut into threes and each letter can correspond to a section of the triangle. For example in v=d/t the letter "d" would be in the top part of the triangle, the "v" and "t" will be in the two bottom parts of the triangle. To solve for a letter, you cover it up and whatever the remaining letters look like mathematically, that is the equation you do (i.e. cover v, the d is above the t showing you divide distance by time). Great for lower-level students!