The Colorado Department of Education's main phone line (303-866-6600) will be closed on Friday, February 7 from 8am until 1pm.
Lines will re-open at 1pm. For immediate assistance, contact cde_communications_office@cde.state.co.us.
You are here
Construct Viable Arguments & Critique the Reasoning of Others - Grade K-12
Summary
This toolkit will address Math Practice Standard 3: constructing viable arguments & critiquing the reasoning of others. This lesson will help you, as a teacher or facilitator, gain information on how to help your students learn these skills and how to use them across content standards.
Get Started
Financial information on schools and districts throughout Colorado. Learn more about financial transparency.
Colorado Dept. of Education
201 East Colfax Ave.
Denver, CO 80203
Phone: 303-866-6600
Contact CDE
CDE Hours
Mon to Fri, 8 a.m. to 5 p.m.
See also Licensing Hours
UPDATED
June 6, 2024
Copyright © 1999-2025 Colorado Department of Education.
All rights reserved.
Title IX.
Accessibility.
Disclaimer.
Privacy.
Connect With Us
