1st Grade Instructional Guide

1st Grade Math Scope & Sequence 2025-2026 Topic 10 Use Models and Strategies to Add Tens and Ones

FLEXIBLE PACING

STANDARDS

REPORTING STANDARDS

KEY LANGUAGE USES

●​ Understand

Standard of Mathematical Practice #4: Model with math Content Standards: Standard 1.NBT.4 Add within 100, including adding a two-digit number and a one-digit number, and adding a two-digit number and a multiple of 10, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used. Understand that in adding two-digit numbers, one adds tens to tens, ones to ones; and that it is sometimes necessary to compose a ten. Standard 1.NBT.5 Given a two-digit number, mentally find 10 more or 10 less than the number, without having to count; explain the reasoning used.

Jan. 26 - Apr. 24

Explain

addition to 100 using models ●​ Add and subtract by groups of 10

Topics 9-12 26 Lessons 56 days

DWSBA Window Apr. 17 - May 1

End of Unit Competency

By the end of Topic 10 students will be able to explain how to add tens and ones using a concrete model or a drawing. Language Functions and Features: Describe data and/or steps to solve problems using: ●​ Mathematical terms ( make ten, add, plus, rows, columns, equation ) ●​ Visuals ( ten frames, hundred charts, place value blocks, number lines ) to support approach, solution, and/or extract information ●​ Past tense doing verbs ( added, counted ) to recount steps ●​ Declarative statements to state conclusion ( The model shows… )