This video is part of the Continue to Know with WHRO TV series. Watch Joy Phillips teach about the validity and credibility of a source.

Developing basic addition and subtraction fact strategies for “one more than”, “one less than”, “two more than”, and “two less than”.Mathematics Instructional Plans (MIPs) help teachers align instruction with the 2016 Mathematics Standards of Learning (SOL) by providing examples of how the knowledge, skills and processes found in the SOL and curriculum framework can be presented to students in the classroom.