SandHills Regional Education Consortium
Domain: Numbers and Operations in Base Ten / Mathematical Practice(s):1. Persevere in problem solving.
2. Reason abstractly and quantitatively.
3. Construct viable arguments and critique the reasoning of others.
4. Model with mathematics.
5. Use appropriate tools strategically.
6. Attend to precision.
7. Look for and make use of structure.
8. Look for and express regularity in repeated reasoning. / Level of Thinking:
Apply
Grade Specific Standard: 1.NBT.5 Given a two-digit number, mentally find ten more or ten less than the number, without having to count; explain the reasoning used
Information Technology Standard: 1.SE.1.1 Use technology hardware and software responsibly.
Clarifying Objectives: Mentally find ten more or ten less than a given number and explain the reasoning used.
Task Analysis / Vocabulary
· Model finding ten more or ten less than a given two-digit number
· Demonstrate the strategy used to mentally find ten more or ten less than a given number
· Justify the reasoning used to mentally determine ten more or ten less than a given number
· Given a two-digit number, mentally find ten more or ten less than the number, without having to count; explain the reasoning used / Instruct:
ten more, ten less, justify
Instructional Resources:
· www.k-5mathteachingresources.com
· www.mathwire.com
· www.illuminations.nctm.org
· www.maccs.ncdpi.wikispaces.net
· http://www.crickweb.co.uk/ks1numeracy.html
· http://www.abcya.com/first_grade_computers.htm / Instructional Tools:
· One Hundreds Chart http://www.mathwire.com/100board/hb2.html
· One Hundred Twenty Chart
· Number line
· Hundreds Board Puzzles http://www.mathwire.com/100board/hbpuzzles.pdf
Anson County ~ Bladen County ~ Columbus County ~ Cumberland County ~ Ft. Bragg ~ Harnett County ~ Hoke County
Lee County ~ Montgomery County ~ Moore County ~ Richmond County ~ Robeson County ~ Scotland County ~ Whiteville City
Copyright (2012) – No portion of this document can be reproduced or used without the express permission of the Executive Director of the SandHills Regional Educational Consortium
SandHills Regional Education Consortium
Domain: Numbers and Operations in Base Ten / Mathematical Practice(s):1. Persevere in problem solving.
2. Reason abstractly and quantitatively.
3. Construct viable arguments and critique the reasoning of others.
4. Model with mathematics.
5. Use appropriate tools strategically.
6. Attend to precision.
7. Look for and make use of structure.
8. Look for and express regularity in repeated reasoning. / Level of Thinking:
Apply
Grade Specific Standard: 1.NBT.5 Given a two-digit number, mentally find ten more or ten less than the number, without having to count; explain the reasoning used
Information Technology Standard: 1.SE.1.1 Use technology hardware and software responsibly.
Clarifying Objectives: Mentally find ten more or ten less than a given number and explain the reasoning used.
Instructional Resources:
· www.fuelthebrain.com
· http://teams.lacoe.edu/documentation/classrooms/linda/linda.html
· http://nrich.maths.org/thismonth/1and2
· https://www.xtramath.org/
· http://www.ode.state.oh.us/GD/Templates/Pages/ODE/ODEDetail.aspx?page=3&TopicRelationID=1704&ContentID=83475 / Instructional Tools:
· Ten Frames
· Manipulatives (counters)
· Place Value Blocks / Tens and Ones (T Chart)
Notes and Additional Information:
Anson County ~ Bladen County ~ Columbus County ~ Cumberland County ~ Ft. Bragg ~ Harnett County ~ Hoke County
Lee County ~ Montgomery County ~ Moore County ~ Richmond County ~ Robeson County ~ Scotland County ~ Whiteville City
Copyright (2012) – No portion of this document can be reproduced or used without the express permission of the Executive Director of the SandHills Regional Educational Consortium
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