The following are three examples of calculation strategies students might discover on their own if they were taught standard algorithms first and allowed to master them before moving on. Common Core ...
Depending on your age, you’ll remember the traditional, straight forward method (algorithm) of doing a three-digit subtraction calculation, like 352 – 164, to arrive at the correct answer of 188. That ...
You're currently following this author! Want to unfollow? Unsubscribe via the link in your email. Follow Andy Kiersz Every time Andy publishes a story, you’ll get an alert straight to your inbox!