Visual aids transform abstract physiological concepts into tangible, memorable experiences for expectant parents. As an antenatal educator, your choice of props determines how effectively your participants grasp the mechanics of birth. Using physical models allows you to bridge the gap between theoretical knowledge and the physical sensations of labour, helping to demystify the process and reduce anxiety through clarity.

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Pelvic Models

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The female pelvic model is the cornerstone of birth education. A life-sized, anatomical model allows you to demonstrate the pelvic inlet, mid-pelvis, and outlet. You should select a model with flexible joints or one held together by elastic cords, as this demonstrates the dynamic nature of the pelvis. During your sessions, use the model to show how the pelvic bones move and "open" in response to hormonal changes and the pressure of the baby's head.

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Pelvic Anatomy Demonstration When using the pelvic model, focus on the relationship between the sacrum and the coccyx. You can physically show how a reclining position might "tuck" the tailbone, potentially narrowing the exit path, whereas an upright or forward-leaning position allows the sacrum to move freely. This visual evidence supports the recommendation for active birth positions without the need for lengthy lectures.

 

Demonstrate the "squatting" effect by showing how the sit-bones (ischial tuberosities) widen when the legs are rotated and flexed, providing a clear rationale for specific movement techniques.​

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Knitted Uterus Models

The knitted uterus is a soft, tactile tool used to explain the powerful muscle movements of labour. Unlike rigid plastic models, the knitted version allows for stretching and manipulation, mimicking the organic nature of uterine tissue. It typically consists of a fundus (the top), the body of the uterus, and a cervix that can be adjusted to show effacement and dilation.

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Muscle Function and Contractions Use the knitted uterus to explain the two layers of uterine muscles: the vertical fibers that pull up and the circular fibers that remain at the bottom. By pulling the top of the knitted model upwards, you provide a visual representation of how the cervix is drawn up and thinned out (effacement). This helps parents understand that contractions are not just "pain" but are functional movements designed to open the birth canal. You can also use the model to demonstrate "fundal dominance," showing how the strength of the contraction starts at the top to push the baby downward.

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Birth Rehearsal Dolls

 

A weighted birth doll, ideally newborn-sized, is essential for demonstrating the "cardinal movements" of birth. The doll should have a flexible neck and limbs to realistically pass through the pelvic model. This combination of the pelvis and the doll is the most effective way to show how a baby rotates and descends during the second stage of labour.

Mechanics of Descent Use the doll to show the "optimal foetal positioning" and how the baby’s head enters the pelvis.

 

You can demonstrate the difference between an occipito-anterior (OA) position and an occipito-posterior (OP) position. By navigating the doll through the pelvis, you show the importance of the baby "tucking" their chin to present the smallest diameter of the head. This demonstration is particularly useful when explaining why certain maternal positions, such as being on all fours, can help a baby rotate into a more favourable position for birth.

Dilation Charts and Tools

Understanding cervical dilation is often a source of confusion for first-time parents. Abstract numbers like "four centimeters" or "seven centimeters" are difficult to visualize in a high-stress environment. Dilation beads, wooden boards with cut-out circles, or even everyday fruit comparisons can make these measurements relatable.

 

Visualising Progress A dilation board featuring circles from one to ten centimeters provides an immediate scale of progress. You can use this to explain the "latent phase" versus the "active phase." For example, showing that the jump from 4cm to 6cm involves a significant change in the cervix’s opening helps parents manage their expectations regarding the timeline of labour.

 

If using fruit, a grape might represent 1cm, a lemon 5cm, and a melon 10cm.

 

This tactile approach makes the information less clinical and more accessible.

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The Balloon and Ping-Pong Ball

 

This simple, low-cost prop is one of the most effective ways to explain the first stage of labour and the concept of "Braxton Hicks" versus true labour contractions. You will need a standard latex balloon and a ping-pong ball.

 

Demonstrating Effacement Place the ping-pong ball inside the balloon and inflate it slightly so the ball sits at the "neck" of the balloon. The neck of the balloon represents the cervix. By squeezing the top of the balloon (the fundus), you show how the vertical muscles pull the cervix up and around the ball.

 

This clearly illustrates effacement (thinning) and dilation (opening). If you squeeze the sides of the balloon, the ball stays put—this represents Braxton Hicks. If you squeeze from the top, the ball eventually "pops" out, representing the transition to the second stage.

This simple visual often provides an "aha" moment for parents who are worried about how their body will know what to do.

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Rebozo and Comfort Tools

 

While often used as a comfort measure in labour, the Rebozo (a long, sturdy cloth) is also a teaching prop. You can use it to demonstrate "sifting" or "mantsada" techniques. Having physical examples of TENS machines, aromatherapy oils, and heat packs in the classroom allows participants to touch and operate the equipment before they are in active labour.

 

Practical Familiarization Pass these items around the room. Let participants feel the pulse of a TENS machine on their palm or smell different essential oils.

 

When teaching about the Rebozo, use a volunteer to demonstrate how the cloth supports the weight of the abdomen. This hands-on interaction builds confidence and reduces the "fear of the unknown" regarding medical or holistic equipment.

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Placenta Models and Cord Clamping

 

Teaching about the third stage of labour requires a way to visualise the placenta and the umbilical cord. A fabric placenta model, often attached to the knitted uterus, allows you to show how the organ detaches from the uterine wall after the baby is born.

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The Third Stage Use the placenta model to explain physiological third stage versus active management. You can show the "fetal side" (the side with the cord) and the "maternal side" (the side that attaches to the uterus). This is an excellent opportunity to discuss delayed cord clamping.

 

By using a prop cord with a clamp, you can physically show where the cord is cut and explain that there are no nerves in the cord, reassuring parents that the process is painless for both them and the baby.

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Interactive Teaching Strategies

 

The mere presence of props is not enough; the way you integrate them into your curriculum determines their educational value. Avoid keeping props on a desk at the front of the room. Instead, bring them into the circle of participants.

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Discovery-Based Learning Instead of telling the group how the pelvis moves, hand the pelvic model to a participant and ask them to find the "wiggle room" in the joints. Ask them to imagine how a baby might navigate those bones. When teaching about the size of a newborn's stomach, use a "stomach capacity" prop (small beads or marbles) to show how much colostrum a baby actually needs. This interactive approach encourages questions and keeps the group engaged.

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Case Study Application Create a scenario where a baby is "back-to-back." Use the pelvic model and doll to show the group the physical challenge this presents. Then, ask the participants to suggest a position—such as side-lying or lunging—and use the props to show whether that position creates more space for the baby to turn. This reinforces the "why" behind the movements you are teaching.

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Care and Professionalism

Your props are professional tools and should be maintained as such. Ensure models are clean, knitted items are free of snags, and dolls are dressed in simple, neutral infant clothing.

 

This professionalism reflects the quality of your instruction. Store your props in organised bags or cases to ensure they remain in good condition during transport to different venues. When props look well-cared-for, they command more respect and attention from your students, reinforcing the value of the information you are providing.​​​

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