Texas TEKS 4.2

4.2 is a TEKS knowledge and skills statement. These are the student expectations under it.

• 4.2.A

  identify advantages and limitations of models such as their size, scale, properties, and materials

• 4.2.B

  analyze data by identifying any significant features, patterns, or sources of error

• 4.2.C

  use mathematical calculations to compare patterns and relationships

• 4.2.D

  evaluate a design or object using criteria.

01

What Students Need to Do

Students examine models and explain what each represents well or poorly. They find patterns and possible errors in data, use calculations to compare results, and judge designs against clear criteria.

02

What Mastery Looks Like

Students can cite numbers from a table or graph to support a claim. They can explain how a model's size, scale, properties, or materials affect its usefulness. They can rate a design using stated criteria and defend the rating with evidence.

03

Common Misconceptions

Students may treat a model as an exact copy rather than a simplified representation. They may call any difference a pattern, ignore unusual data, or assume all errors are mistakes. They may choose a favorite design without checking each criterion.

04

How to Assess It

Give students a small data table with one unusual result and two design sketches with stated criteria. Ask them to identify a pattern, calculate one comparison, flag the possible error, and select the stronger design with evidence.

1. 01

   Build bridge models from index cards and foil, test each with pennies, record results, then compare material limits and design criteria.

2. 02

   Show a globe and a flat map, then ask students to write which features each represents well and which it distorts.

3. 03

   Play Data Detective with short tables, awarding points for naming a pattern, calculating a comparison, and spotting one likely measurement error.

4. 04

   Compare two reusable water bottles using cost, capacity, weight, and insulation data, then recommend one for a class field trip.

• 1.2

  The 1st Grade version of this standard.

• 3.2

  The 3rd Grade version of this standard.

• 2.2

  The 2nd Grade version of this standard.

• 5.2

  The 5th Grade version of this standard.