Chemistry Instructional Guide

Claim, Evidence & Reasoning Model

Step

Description

Sentence Stems

● I noticed that . . . ● My claim is . . . ● It is my opinion that . . .

Claim

It should describe the relationship between dependent and independent variables. Useenough evidence and data to support the claim.

A statement about the results of an investigation

● In paragraph ____ it states . . . ● According to the data/graph/table . . . ● A trend that was evident in the data . . . ● This is shown in the data by . . . ● The evidence supports my claim because . . . ● The reason for this is . . . ● I know this is true because . . . ● The most logical conclusion from this evidence is that… ● This is signifcant because… ● These facts, taken together, mean that… ● A scientifc principle/concept to support this claim is that… ● Based on this, we can predict that…

Evidence

Scientifc data used to support the claim

Reasoning Ties together the Claim & Evidence

Shows how or why the data counts as evidence to support the claim.