Educational worksheet on puberty stages (Tanner Stages) with gender-specific changes to be classified.

Let's solve this Tanner Stages worksheet step by step.

---

🔍 Understanding Tanner Stages:

The Tanner stages (also called sexual maturity ratings) describe the physical changes that occur during puberty in both boys and girls. There are 5 stages, from Stage 1 (pre-pubertal) to Stage 5 (fully mature adult).

We need to:
1. Arrange the boxes under the correct Tanner stage (1–5).
2. Color the boxes:
- Yellow if it applies to girls only.
- Blue if it applies to boys only.
- No color if it applies to both.

---

📌 Step 1: Understand Each Tanner Stage

| Stage | Description |
|------|-------------|
| Tanner Stage 1 | Pre-pubertal – no visible changes yet. The body is still child-like. |
| Tanner Stage 2 | Early puberty – first signs of development begin. |
| Tanner Stage 3 | Mid-puberty – noticeable growth and changes. |
| Tanner Stage 4 | Late puberty – approaching adult features. |
| Tanner Stage 5 | Full maturity – adult characteristics reached. |

---

✔ Now, let’s classify each change under the correct stage and assign colors.

---

## 🔹 TANNER STAGE 1
> No physical changes yet — pre-pubertal.

✔ Changes:
- Neither sex experience physical change
- Brain transmits message to body for changes *(This is the start of hormonal signaling, but no visible change)*
- Hypothalamus sends GnRH to the pituitary *(Hormonal trigger)*
- Pituitary gland produces hormones LH and FSH *(Hormonal cascade begins)*

🟢 Coloring: None (these are internal processes common to both)

---

## 🔹 TANNER STAGE 2
> First visible signs of puberty.

✔ Changes:

For Girls (Yellow):

- Buds appear beneath the nipple (breast budding)
- Areola grow larger
- Uterus grows, and small pubic hair sprouts
- First pubic hair appears at the base of penis? ✘ Wait — that's boys!

Wait! Let's fix this:

For Boys (Blue):

- First pubic hair appears at the base of penis
- Testicles and skin around scrotum grow in size
- Penis becomes longer as testicles grow larger → This is later, probably Stage 3 or 4

So re-evaluate:

#### ✔ Tanner Stage 2 Changes:

Girls (Yellow):
- Buds appear beneath the nipple
- Areola grow larger
- Uterus grows, and small pubic hair sprouts

Boys (Blue):
- First pubic hair appears at the base of penis
- Testicles and skin around scrotum grow in size

Both (No color):
- Pubic hair has reached inner thighs? → That's later
- Acne may emerge on face and back → Common in early puberty, so Stage 2

Wait — let's be precise.

Corrected Tanner Stage 2:

- Girls: Breast buds, slight pubic hair
- Boys: Testicular enlargement, first pubic hair
- Both: Acne may emerge, brain signals start

But "Acne may emerge" is often associated with hormonal changes starting in Stage 2.

So:

✔ Tanner Stage 2:
- Buds appear beneath the nipple → Girl (Yellow)
- First pubic hair appears at the base of penis → Boy (Blue)
- Testicles and skin around scrotum grow in size → Boy (Blue)
- Uterus grows, and small pubic hair sprouts → Girl (Yellow)
- Acne may emerge on face and back → Both (No color)
- Brain transmits message to body for changes → Both (No color) — but already listed in Stage 1?

Wait — this is a problem. Some changes overlap.

Let’s go through all the options carefully.

---

🔍 Full List of Changes and Their Stages:

| Change | Stage | Gender | Color |
|-------|-------|--------|-------|
| Fat accumulates in hips and thighs | Stage 4 | Girls | Yellow |
| Muscles grow in size | Stage 3–4 | Boys | Blue |
| Shaped hips, thighs, and buttocks | Stage 5 | Girls | Yellow |
| Hypothalamus sends GnRH to the pituitary | Stage 1 | Both | No color |
| Permanent deep voice | Stage 5 | Boys | Blue |
| Experience of first period | Stage 3–4 | Girls | Yellow |
| Testicles and skin around scrotum grow in size | Stage 2 | Boys | Blue |
| Armpit hair develops | Stage 3 | Both | No color |
| Height growth is 2 to 3 inches per year | Stage 3 | Both | No color |
| Breasts develop adult size and shape | Stage 5 | Girls | Yellow |
| Neither sex experience physical change | Stage 1 | Both | No color |
| Penis becomes longer as testicles grow larger | Stage 3 | Boys | Blue |
| Areola grow larger | Stage 3 | Girls | Yellow |
| Attained peak growth of height at age 18 | Stage 5 | Both | No color |
| Pubic hair thicken and curl | Stage 4 | Both | No color |
| Shifting of voice from high to low pitch | Stage 3–4 | Boys | Blue |
| Penis, testicles, and scrotum reached maturity | Stage 5 | Boys | Blue |
| Breast passed the bud stage | Stage 3 | Girls | Yellow |
| Periods become regular | Stage 4–5 | Girls | Yellow |
| Pubic hair has reached inner thighs | Stage 3 | Both | No color |
| Acne emerges | Stage 2–3 | Both | No color |
| Acne may emerge on face and back | Stage 2 | Both | No color |
| Pituitary gland produces hormones LH and FSH | Stage 1 | Both | No color |

---

✔ Final Classification by Stage:

---

## 🟦 TANNER STAGE 1
> Pre-pubertal: Hormonal changes begin, but no visible signs.

- Neither sex experience physical change → Both (No color)
- Hypothalamus sends GnRH to the pituitary → Both (No color)
- Pituitary gland produces hormones LH and FSH → Both (No color)
- Brain transmits message to body for changes → Both (No color)

> Note: These are internal hormonal triggers — not visible.

---

## 🟨 TANNER STAGE 2
> Early puberty: First visible signs.

Girls (Yellow):
- Buds appear beneath the nipple
- Uterus grows, and small pubic hair sprouts
- Breast passed the bud stage? → Wait, "passed the bud stage" implies beyond Stage 2 → likely Stage 3

So:
- Buds appear beneath the nipple → Stage 2 (Girl)
- Uterus grows, and small pubic hair sprouts → Stage 2 (Girl)

Boys (Blue):
- First pubic hair appears at the base of penis
- Testicles and skin around scrotum grow in size

Both (No color):
- Acne may emerge on face and back

---

## 🟧 TANNER STAGE 3
> Mid-puberty: Rapid growth and development.

Girls (Yellow):
- Areola grow larger
- Breast passed the bud stage (yes — after initial budding)
- Experience of first period (often occurs in Stage 3)

Boys (Blue):
- Penis becomes longer as testicles grow larger
- Shifting of voice from high to low pitch
- Muscles grow in size (starts now)
- Height growth is 2 to 3 inches per year (growth spurt)

Both (No color):
- Armpit hair develops
- Pubic hair has reached inner thighs
- Acne emerges (can continue)
- Height growth is 2 to 3 inches per year

> Note: Growth spurt typically peaks in Stage 3.

---

## 🟪 TANNER STAGE 4
> Late puberty: Approaching adult form.

Girls (Yellow):
- Fat accumulates in hips and thighs
- Periods become regular

Boys (Blue):
- Shifting of voice continues (deepens)
- Muscles grow in size (more pronounced)

Both (No color):
- Pubic hair thicken and curl
- Acne may emerge on face and back (still possible)

> Note: Voice deepening is mostly complete by Stage 4.

---

## 🟫 TANNER STAGE 5
> Full maturity.

Girls (Yellow):
- Breasts develop adult size and shape
- Shaped hips, thighs, and buttocks

Boys (Blue):
- Permanent deep voice
- Penis, testicles, and scrotum reached maturity

Both (No color):
- Attained peak growth of height at age 18
- All physical changes complete

---

✔ Final Answer: Arranged and Colored

Now place each box under the correct stage.

---

🟦 TANNER STAGE 1

- Neither sex experience physical change → No color
- Hypothalamus sends GnRH to the pituitary → No color
- Pituitary gland produces hormones LH and FSH → No color
- Brain transmits message to body for changes → No color

---

🟨 TANNER STAGE 2

Girls (Yellow):
- Buds appear beneath the nipple
- Uterus grows, and small pubic hair sprouts

Boys (Blue):
- First pubic hair appears at the base of penis
- Testicles and skin around scrotum grow in size

Both (No color):
- Acne may emerge on face and back

---

🟧 TANNER STAGE 3

Girls (Yellow):
- Areola grow larger
- Breast passed the bud stage
- Experience of first period

Boys (Blue):
- Penis becomes longer as testicles grow larger
- Shifting of voice from high to low pitch
- Muscles grow in size

Both (No color):
- Armpit hair develops
- Pubic hair has reached inner thighs
- Height growth is 2 to 3 inches per year
- Acne emerges

---

🟪 TANNER STAGE 4

Girls (Yellow):
- Fat accumulates in hips and thighs
- Periods become regular

Boys (Blue):
- Muscles grow in size (if not already listed)
- Shifting of voice (continues)

Both (No color):
- Pubic hair thicken and curl

---

🟫 TANNER STAGE 5

Girls (Yellow):
- Breasts develop adult size and shape
- Shaped hips, thighs, and buttocks

Boys (Blue):
- Permanent deep voice
- Penis, testicles, and scrotum reached maturity

Both (No color):
- Attained peak growth of height at age 18

---

🎯 Summary of Key Points:

- Stage 1: Hormonal start — no visible changes.
- Stage 2: First visible signs — breast buds (girls), testicular enlargement (boys).
- Stage 3: Growth spurt, voice changes, more hair.
- Stage 4: Hair thickens, fat distribution, periods regularize.
- Stage 5: Adult features — full maturity.

---

🖍️ Coloring Instructions:

- Yellow: Only girls
- Blue: Only boys
- No color: Both

---

✔ Final Task: Place each box under the correct stage and color accordingly.

You can now fill in the worksheet using this classification.

Let me know if you want a printable version or a visual layout!