Name of Math Skill/Concept: Rounding to the nearest ten or hundred using numbers and symbols.
Prerequisite Skills:
Round to the nearest ten and hundred using concrete materials and by drawing without a number line.
Round to the nearest ten and hundred using a number line with concrete materials and by drawing.
Skip count by tens.
Identify place value of digits in three digit numbers.
Learning Objectives:
1) Round to the nearest ten or hundred by identifying the “talking digit” in two and three digit numbers.
2) Round to the nearest ten or hundred by writing numbers to represent “counting on” and “counting back.”
3) Round to the nearest ten or hundred using proximity cues (Round to the Nearest Ten Chart or Round to the Nearest Hundred Chart).
Important Ideas for Implementation:
1) Because students with learning difficulties often have difficulty performing math skills at the abstract level, it is important that explicit links are made between their concrete/ drawing experiences and their abstract level instruction.
2) Students will most likely benefit from first from learning to identify the "talking digit" which is taught during Explicit Teacher Modeling - Instructional Objective 1. Essential features of rounding can then be reinforced by the skills taught during Explicit Teacher Modeling - Instructional Objectives 2 & 3.
