Making Our First Glue

Part 1: Learning About the Lesson

Lesson Date: [Insert Date]
Grade Level: 2nd Grade
Class Size: 16 students
Lesson Duration: 40 minutes

Lesson Purpose (Overview)

In this lesson, students will explore the scientific process by making glue from natural ingredients. They will engage in hands-on experimentation, observe chemical and physical changes, and understand the basic concept of how substances combine to make a new material — glue. This activity nurtures scientific curiosity, encourages observation skills, and introduces early concepts of chemistry relevant for 2nd graders.

Learning Objective(s)

By the end of this lesson, students will be able to:

Observe and describe the process of making glue using natural ingredients.
Predict outcomes in the glue-making process based on observations.
Explain in simple terms how combining ingredients creates a sticky substance.
Communicate their findings through drawings and group discussion.

Common Core State Standards (CCSS) Alignment

Although Common Core State Standards are primarily focused on Math and English Language Arts, the following CCSS Science and Engineering Practices from the Next Generation Science Standards (NGSS), which many states adopt alongside Common Core, will guide this lesson:

2-PS1-1: Plan and conduct an investigation to describe and classify different kinds of materials by their observable properties.
SEPS 3: Planning and carrying out investigations.
SEPS 4: Analyzing and interpreting data.
CCSS.ELA-LITERACY.SL.2.1: Participate in collaborative conversations with diverse partners about grade 2 topics and texts with peers and adults in small and larger groups.
CCSS.ELA-LITERACY.W.2.8: Recall information from experiences or gather information from provided sources to answer a question.

Part 2: Getting Ready to Teach

Materials Needed

White flour
Water
Salt
Mixing bowls (large enough for small groups)
Spoons or stir sticks
Measuring cups and spoons
Small clear containers for glue samples
Paper and crayons/markers for drawing observations
Wet wipes or paper towels for cleanup

Preparation Notes

Pre-measure flour, salt, and water to speed up the activity.
Arrange students into groups of 4 for teamwork and peer learning.
Prepare a demonstration area with visual support (posters or slides showing steps).
Establish clear safety and cleanliness routines for handling materials.
Anticipate curiosity about “why glue sticks” and be ready to explain in simple terms about mixing and binding.
Plan to use guided questions and group discussion for formative assessment.
Consider a visual timer to help manage transitions.

Lesson Activities

Activity 1: Introduction & Questioning (5 minutes)

Objective: Activate prior knowledge and spark curiosity.
Process: Ask students, “Have you ever used glue? What do you think glue is made of?”
Show pictures of handmade glue and store-bought glue to compare.
Introduce the question: “Can we make our own glue with things around us?”
Write down student predictions on the board or chart paper.

Activity 2: Making the Glue (15 minutes)

Objective: Engage in hands-on investigation and follow a simple recipe.
Process:
1. In groups of 4, students combine 1 cup flour, 1/2 cup water, and 1/4 teaspoon salt in mixing bowls.
2. Stir until smooth and thickened like putty glue.
3. Students observe and describe the texture, color, and consistency.
Teacher circulates, asking guided questions:
- “What do you notice about the mixture?”
- “How does it change when you stir it?”
- “What do you think will happen if we add more water or flour?”
Use a visual slide or poster with step-by-step instructions to support.

Activity 3: Testing & Observation (10 minutes)

Objective: Observe glue properties and share findings.
Process:
1. Each student applies a dab of their glue to paper to test stickiness.
2. Groups discuss whether the glue holds paper parts together well.
3. Students draw what they made and write one sentence about their glue’s stickiness.
Small group sharing: each group explains what worked well and any surprises.
Teacher models scientific vocabulary: sticky, mixture, ingredients, change.

Activity 4: Wrap-up Discussion & Reflection (10 minutes)

Objective: Reinforce learning through group conversation and reflection.
Process:
1. Whole class comes together; student groups share their observations and drawings.
2. Teacher prompts: “Why do you think the flour and water stick together?”
3. Discuss how making glue is a kind of experiment where we mix things to see what happens.
4. Connect to everyday experiences: “We use glue to stick things. Now you know how some glue can be made!”
Summarize key points and reinforce vocabulary.

Assessment & Evaluation

Formative Assessment:
- Monitor participation in group activities and use of vocabulary during discussions.
- Check student drawings and sentences for understanding of the glue-making process.
Exit Ticket:
- Each student tells one new thing they learned about making glue or how glue works.

Differentiation Strategies

Provide sentence starters or drawing prompts for students needing language support.
Allow students with fine motor challenges to participate by guiding the mixing or observational tasks.
Challenge advanced learners by asking them to hypothesize what happens if ingredients change.

Technology Integration

Use tablet cameras to photograph each group’s glue product for digital science journals or classroom display.
Optionally, record a short video summary by groups to practice oral communication (if resources and time allow).

Anticipated Challenges & Solutions

Challenge: Students may get messy or distracted during mixing.
Solution: Set clear rules, designate "mixing zones," and model cleanup procedures.
Challenge: Some students might expect immediate “glue-like” strength.
Solution: Explain that this glue is made from simple materials and demonstrate differences vs. commercial glue.

Teacher Reflection — Post Lesson

Note which parts of the activity excited students the most.
Assess effectiveness of questioning techniques.
Consider adjustments for timing or grouping for future implementation.

This highly interactive, exploratory lesson blends hands-on science with communication skills, aligned to Common Core and NGSS standards, designed to foster inquiry, collaboration, and scientific thinking in second graders.

Teaching Instructions