Home U2: Algorithms & Programming U2: Algorithms & Programming U2: Algorithms & Programming By Steph Sillitoe. Published on February 22, 2021. 0 Using the Scratch JR blocks, the students could position the block codes in a line for their partner to read and perform the code. 13-01-2015-ScratchJR-Block-Matrix Share this:TwitterFacebookLike this:Like Loading... + There are no comments Add yours You must log in to post a comment.This site uses Akismet to reduce spam. Learn how your comment data is processed.