A timeline running from prehistory to modern times across the BCE and CE divide, which is the one thing about dates that reliably confuses a child: numbers that count downwards, then a year with no zero, then numbers that count up. Seeing the whole span at once with the turn marked on it settles that in a way an explanation does not. Durable plastic. The subject timelines are separate items.
“Education is a natural process spontaneously carried out by the human individual, and is acquired not by listening to words but by experiences upon the environment.”
The BC/AD Timeline addresses the child's growing awareness that events happened before their own existence, responding to their natural curiosity about 'long ago.' This accordion-style timeline provides a concrete, visual representation of abstract temporal concepts, allowing children to physically manipulate and explore the division between BC and AD periods. The clearly labeled time period divisions transform the invisible concept of historical time into something tangible that young learners can see, touch, and organize.
By unfolding and examining the BC/AD Timeline, children develop their understanding of chronological sequence beyond personal experience. The material's linear design mirrors the child's developing mathematical mind, which seeks to order and classify information. Through working with the BC/AD Timeline, children begin to comprehend that history extends far beyond their immediate world, preparing them for later historical studies while satisfying their present need to understand where they fit within the grand scope of time.


Follow the Montessori method of presentation for optimal child development.
Find a long, clear floor space or table where the accordion timeline can be fully extended. Ensure the area is free from distractions and has good lighting.
Invite the child to unfold the timeline slowly, observing each section as it opens
Point to the center division between BC and AD, explaining these represent time before and after year zero
Walk along the timeline together, noting how BC numbers get smaller approaching zero
Select a few major events the child knows about and place them on the appropriate side

Heritage
Since 1929

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AMI
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Introduces fundamental concepts of historical time periods and the BC/AD system in an age-appropriate format.
The accordion design encourages left-to-right progression, supporting reading readiness and chronological understanding.
Introduce the timeline after children have worked with personal timelines and understand sequential ordering
Everything you need to know about this material.
Contact Our ExpertsThe BC/AD Timeline is designed for children ages 3-6, though it can be introduced when children show readiness for understanding time concepts and can continue to be used as a reference throughout elementary years.
This material provides a concrete, visual representation of abstract time concepts, allowing children to physically manipulate and explore chronological sequences. The accordion design enables hands-on learning and helps children develop their understanding of historical periods through sensorial experience.
The timeline features an accordion-style design that can be extended to show the full span of BC/AD periods. It's made with durable materials suitable for classroom use, with clearly labeled divisions and period markers that are easy for young children to read and understand.
Teachers can use this timeline to introduce historical figures, events, and cultural developments. It serves as a reference point for story-telling, birthday celebrations of historical figures, and can be combined with other Montessori history materials like the Timeline of Life or fundamental needs charts.
The timeline primarily shows the division between BC (Before Common Era) and AD (Anno Domini/Common Era) periods with clear period markers. Teachers can add their own event cards, pictures, or labels to customize it for specific lessons or cultural studies.
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