Ella is getting quite adept at using the chain rule to solve problems involving sin and cos.

When working with complicated questions, Ella needs to start breaking down a question into functions and smaller functions, so that when using the chain rule to derive a large problem she doesn't forget any components.

Ben knew all the formulae required to calculate the volume of shapes and flow rates to figure out how long it'd take to fill up a pool.

Ben is quite clever but he often asks me for confirmation for his answers and solutions before he finishes a question. he needs to be confident enough to continue working on a problem until he has finished it, and expect solutions/help afterwards rather than during his working.

Caige is slowly understanding and becoming more confident with various problems involving sequences, and can solve quite a variety on his own.

While he understands the basics of sequences, Caige still needs to learn to understand the rules of sequences so that when questions get complicated he isn't lost.

Ella can figure out the theory behind the solutions to most complicated Questions given to her, and once set on the right path can solve quite difficult problems relative to sin and cos laws

Ella needs to learn to use the formulas given to her (in the formula sheet) and to remember how to use them correctly to solve a variety of problems.