Identify possible manipulatives or concrete devices that can be used to teach the following topics in algebra and geometry:
1. Multiplying binomials
2. Factoring perfect square trinomials
3. Factoring trinomial squares by trial and error
4. Finding Least Common Multiples of numbers and expressions
5. Adding and subtracting polynomial expressions
6. Learning reflections
7. Learning rotations
8. Areas of triangles
9. Areas of quadrilaterals (squares, rectangles, parallelograms, trapezoids)
10. Area of a circle