Leprechaun Traps: Addition Within 100

Grades K-2 / Math / Reasoning
CCSS: Math.1.NBT.C.4 Math.Practice.MP2 Math.Practice.MP3

Common Core State Standards

Math

Math

1

Grade 1

NBT

Number & Operations in Base Ten

C

Use place value understanding and properties of operations to add and subtract

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 and tens, ones and ones; and sometimes it is necessary to compose a ten.

Download Common Core State Standards (PDF 1.2 MB)

Common Core State Standards

Math

Math

Practice

Mathematical Practice Standards

MP2

Reason abstractly and quantitatively.

Mathematically proficient students make sense of quantities and their relationships in problem situations. They bring two complementary abilities to bear on problems involving quantitative relationships: the ability to decontextualize--to abstract a given situation and represent it symbolically and manipulate the representing symbols as if they have a life of their own, without necessarily attending to their referents—and the ability to contextualize, to pause as needed during the manipulation process in order to probe into the referents for the symbols involved. Quantitative reasoning entails habits of creating a coherent representation of the problem at hand; considering the units involved; attending to the meaning of quantities, not just how to compute them; and knowing and flexibly using different properties of operations and objects.

Download Common Core State Standards (PDF 1.2 MB)

Common Core State Standards

Math

Math

Practice

Mathematical Practice Standards

MP3

Construct viable arguments and critique the reasoning of others.

Mathematically proficient students understand and use stated assumptions, definitions, and previously established results in constructing arguments. They make conjectures and build a logical progression of statements to explore the truth of their conjectures. They are able to analyze situations by breaking them into cases, and can recognize and use counterexamples. They justify their conclusions, communicate them to others, and respond to the arguments of others. They reason inductively about data, making plausible arguments that take into account the context from which the data arose. Mathematically proficient students are also able to compare the effectiveness of two plausible arguments, distinguish correct logic or reasoning from that which is flawed, and--if there is a flaw in an argument--explain what it is. Elementary students can construct arguments using concrete referents such as objects, drawings, diagrams, and actions. Such arguments can make sense and be correct, even though they are not generalized or made formal until later grades. Later, students learn to determine domains to which an argument applies. Students at all grades can listen or read the arguments of others, decide whether they make sense, and ask useful questions to clarify or improve the arguments.

Download Common Core State Standards (PDF 1.2 MB)
Lesson Objective
Use multiple strategies to solve addition problems
Length
11 min
Questions to Consider
What skills do students develop through the daily math routine?
How does Ms. Wright encourage students to use multiple strategies?
What is the effect of using a situational story?
Common Core Standards
Math.1.NBT.C.4, Math.Practice.MP2, Math.Practice.MP3

Supporting Materials

  • Please sign in or sign up to download Supporting Materials
  • Leprechaun Traps: Addition Within 100 Transcript

  • Lesson Plan: Part Part Whole Cards 10 to 18_Part1.PDF

Video License

Add This to My Workspace in Lesson Planner

   

 

This Has Been Scheduled in Your Lesson Planner

   

 

This Has Been Saved in Your Lesson Planner

   

 

Saved in Your Lesson Planner

   

 

Scheduled in Your Lesson Planner

   

 

Embed This Tch Video on Your Site

Just copy the code below and paste it into your html code where you want the video to appear. This latest code supports iPad, iPhone, Flash and more.

Video play overlay

Lesson Idea (Common Core) Leprechaun Traps: Addition Within 100

Grades K-2 / Math / Reasoning

Leprechaun Traps: Addition Within 100