For those in both 1st & 2nd year catechesis, the Small Catechism is divided into six sections for our Learn by Heart (memory work). You can find these starting on page 321 of your hymnal. You can see how the Catechism is divided by looking at the Learn by Heart quizzes included below.
These sections of the Catechism are best learned by reading them a couple times a day. Reading out loud is also helpful and for extra help it may be useful to write them out a couple times. There will be a quiz over each section. These are included here and can be downloaded and used for practice. Repetition is the key to learning.