Jonathan reviewed double digit addition by playing the puppy canoe game. He practiced regrouping with accuracy and speed to win the race. Jonathan reviewed double digit subtraction with regrouping. He watched a tutorial on YouTube that explicitly explained borrowing tens and converting it into ones. He solved six problems on his own as a mini assessment. Jonathan was introduced to three-digit subtraction by watching a YouTube tutorial. This video explicitly explained borrowing tens and hundreds. Jonathan solved a few problems with little help.