Texas TEKS 1.2

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

• 1.2.A

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

• 1.2.B

  analyze data by identifying significant features and patterns

• 1.2.C

  use mathematical concepts to compare two objects with common attributes

• 1.2.D

  evaluate a design or object using criteria to determine if it works as intended.

01

What Students Need to Do

Students examine simple models and name what each model shows well or leaves out. They find patterns in data and use numbers to compare two objects with the same attribute. They test a design against clear criteria and decide whether it works.

02

What Mastery Looks Like

A student can identify a model’s useful feature and one limit, such as its size or material. The student can describe a data pattern, compare measurements, and use test results to judge a design.

03

Common Misconceptions

Students may think a model must look exactly like the real object or that a larger model is always better. They may compare different attributes, focus on one data point instead of a pattern, or say a design works without checking the criteria.

04

How to Assess It

Give students a chart showing how many blocks two paper bridges held. Ask them to compare the results, name a pattern, decide which bridge met a 10-block goal, and state one limit of the model.

1. 01

   Pairs build two foil boats, count how many pennies each holds, record the results, and decide which boat meets a 10-penny goal.

2. 02

   Show a toy animal and a real animal photo, then ask, “What does the model show well, and what does it leave out?”

3. 03

   Students match data cards to pattern statements, such as “the plant grew each day” or “the temperature stayed the same.”

4. 04

   Test two classroom storage boxes, compare how many books they hold, and choose the one that meets a stated storage goal.

• 3.2

  The 3rd Grade version of this standard.

• 2.2

  The 2nd Grade version of this standard.

• 6.2

  The 6th Grade version of this standard.

• 5.2

  The 5th Grade version of this standard.