Solve the Math problem for each day of the week by completing your CER (Claim, evidence, and Reasoning). Make sure you have a paper/notebook and a pencil. 1. Tap the button. 2. Go through the pages on the right and look for the correct day. 3. Read the instructions for each day before completing. 4. Tap to save your work for the day. 5. On Friday, tap to submit your Math Journal for the whole week.