Yes. Since you are using the 5E model, I would make the Exploration phase an
investigation rather than a reading/comprehension activity. The students should
experience the problem that Mendel was trying to solve before you explain heredity,
genes, dominant/recessive, etc.
For a 30-minute actual teaching period, I suggest this exploration:
🔎 Exploration Activity: “Mendel’s Mystery Garden”
Learning purpose
Students investigate pea-plant traits, look for patterns, and try to determine how traits
might be passed from parent plants to offspring—without yet teaching them the genetic
explanation.
Time: 15–18 minutes
This leaves you time for a short Engage and later transition to Explain.
Step 1 — Give students the mystery
Tell students:
“Imagine you are a scientist working in Mendel’s garden. You have been observing pea
plants, but you don't yet know how traits are passed from parents to their offspring. Your job
is to investigate the plants and find patterns.”
Do NOT tell them about genes, alleles, dominant/recessive traits yet.
Step 2 — Give each group a “Mendel’s Garden” card set
Each group gets cards showing pea plants with different characteristics.
For example:
Trait
Plant A Plant B
Height
Tall
Short
Seed color Yellow Green
Seed shape Round Wrinkled
Flower color Purple White
You can make the cards visually simple:
🌱 Plant A
Tall — Yellow seeds — Round seeds
🌱 Plant B
Short — Green seeds — Wrinkled seeds
Then give students several offspring cards.
For example:
Cross 1
Parent 1: Tall
Parent 2: Short
Offspring:

Tall

Tall

Tall

Tall
Cross 2
Parent 1: Yellow seeds
Parent 2: Green seeds
Offspring:

Yellow

Yellow

Yellow

Yellow
Cross 3
Parent 1: Round seeds
Parent 2: Wrinkled seeds
Offspring:

Round

Round

Round

Round
The students don't need to know why this happens.
� Student Investigation
Give them this challenge:
“What do you notice?”
Students work in groups to:
1. Observe
Look carefully at the parent and offspring plants.
2. Sort
Group the cards according to their traits.
3. Compare
Compare parents with offspring.
4. Find a pattern
What characteristics seem to be passed from parents to offspring?
5. Make a hypothesis
What do you think determines which trait an offspring gets?
📝 Student Recording Sheet
I would make the worksheet very simple at this stage.
Mendel's Mystery Garden
1. What traits can you observe?
Trait
Variation 1 Variation 2
Plant height __________ __________
Seed color __________ __________
Seed shape __________ __________
Flower color __________ __________
2. Compare the parents and offspring.
Cross Parent traits
Offspring trait What do you notice?
1
Tall × Short
______
__________________
2
Yellow × Green
______
__________________
3
Round × Wrinkled ______
__________________
3. Discuss with your group:
What pattern do you notice about traits in the offspring?
4. Make a prediction:
If two pea plants with different traits are crossed, what do you think will happen to their
offspring?
5. Scientists' Question 🌱
How can traits be passed from parents to offspring?
⭐ The important 5E point
At this stage, do not correct their predictions.
For example, a student may say:
“The stronger trait takes over.”
Don't immediately say, “That's dominant.”
Instead respond:
“Interesting. What evidence from the plants makes you think that?”
Or:
“Can you find another example that supports your idea?”
This is exactly what makes it Exploration rather than Explain.
🎯 Then use the paragraph as the transition
After the groups finish, bring the class together and say something like:
“You have just done something very similar to what a scientist named Gregor Mendel did.
Mendel noticed that pea plants had different traits. He carefully crossed plants with different
characteristics and recorded what happened to their offspring.”
Then display:
The Big Question
How did Mendel figure out the patterns of inheritance?
Now you are ready to move into the Explain phase, where the paragraph you shared
becomes much more meaningful.
One thing I would change from the textbook
I wouldn't have students simply read this paragraph during Exploration. The paragraph
already tells them that Mendel transferred pollen, crossed traits, collected data, and is called
the father of modern genetics.
That information belongs much better in Explain.
In Exploration, let students experience the mystery first. Then the paragraph becomes the
story that explains what they have just been investigating.
If you want, I can next design the actual printable “Mendel’s Mystery Garden” card set +
student worksheet, ready to use with your 30-minute lesson.
I like it but I need another activity to the same objective so I can split the studentes into 2
groups
Absolutely. I would make the second activity genuinely different, while keeping exactly
the same learning objective:
Students observe variations in traits, compare parents and offspring, identify
patterns, and develop a hypothesis about how traits are inherited.
So Group 1 can be doing a card investigation, while Group 2 does a
prediction/investigation challenge.
🌱 Group 2 — “Build the Offspring”
The idea
Instead of giving students the offspring and asking them to find the pattern, students
predict what the offspring might look like based on the traits of the parents.
This creates a nice contrast:

Group 1: “Here is the evidence. What pattern can you find?”

Group 2: “Here are the parents. What do you predict will happen?”
🔬 Student Challenge
Tell students:
“You are Mendel's research team. You have two parent pea plants with different traits.
Before you see their offspring, you must predict what their offspring will look like.”
Give each group Parent Cards.
For example:
Cross A
🌱 Parent 1
Tall plant
×
🌱 Parent 2
Short plant
Predict the offspring:
☐ All tall
☐ All short
☐ Some tall and some short
☐ Something else: _______
Cross B
� Yellow seeds
×
� Green seeds
Predict:
☐ All yellow
☐ All green
☐ Some yellow and some green
☐ Something else: _______
Cross C
� Purple flowers
×
⚪ White flowers
Predict:
☐ All purple
☐ All white
☐ Some purple and some white
☐ Something else: _______
🔍 Now reveal the evidence
After students make their predictions, give them the actual offspring cards.
For example:
Cross A
Tall × Short
→ 🌱 Tall
→ 🌱 Tall
→ 🌱 Tall
→ 🌱 Tall
Students compare:
My prediction
What actually happened?
Was my prediction correct?
☐ Yes
☐ Partly
☐ No
What pattern do you notice?
� The important part
Don't make the activity about getting the "right answer."
The scientific thinking is:
Predict → Observe → Compare → Find a pattern → Develop a hypothesis
At the end, ask:
“Why do you think the offspring did not always show both parents' traits?”
That question creates the need for the Explain phase.
👥 How I would organize your two groups
Group 1
Group 2
Mendel's Mystery Garden Build the Offspring
Sort and compare evidence Predict before seeing evidence
Find patterns
Test predictions
Analyze offspring
Compare prediction with actual offspring
Develop a hypothesis
Develop a hypothesis
15 min
15 min
Then bring both groups together for a 2–3 minute share-out.
Ask each group:
“What did you discover about how traits appear in offspring?”
And write their ideas on the board without introducing the terms gene, allele, dominant,
or recessive yet.
⭐ I actually prefer this two-group structure
Because the two groups approach the same scientific question from opposite directions:
Group 1:
Evidence → Pattern → Hypothesis
Group 2:
Prediction → Evidence → Pattern → Hypothesis
That is much more authentically scientific than simply giving both groups two different
worksheets.
And it sets you up beautifully for the next 5E stage:
EXPLORE: “We see a pattern, but why?”
⬇️
EXPLAIN: “Mendel's experiments help us understand why.”