Chaining is a teaching method used in applied behavior analysis (ABA) that breaks a complex skill into smaller, sequential steps and teaches those steps in a specific order. It’s one of the most common techniques for helping children learn multi-step tasks like handwashing, getting dressed, or following a classroom routine. There are three types of chaining, each with a different approach to which step gets taught first and how the learner progresses through the sequence.
How Chaining Works
Before chaining can begin, a therapist creates what’s called a task analysis: a detailed breakdown of every individual action needed to complete a skill from start to finish. For something like handwashing, this might include turning on the faucet, wetting hands, applying soap, rubbing hands together, rinsing, turning off the water, and drying with a towel. Each of these becomes a link in the chain.
The idea is that no single step is too difficult on its own. A child who struggles to learn “wash your hands” as one big instruction can often learn each small piece independently. Chaining then connects those pieces into a smooth, complete routine. The therapist decides which type of chaining to use based on the child’s current abilities, how long the task is, and what will keep the child most engaged throughout the learning process.
Forward Chaining
Forward chaining teaches the first step of a task first. The child practices that step independently, and the therapist completes or assists with everything that comes after. Once the child masters step one, they move on to performing steps one and two independently, with help on the rest. This continues until the child can do the entire sequence alone.
Using the handwashing example, the child would first learn to turn on the faucet by themselves. The therapist would then guide them through wetting, soaping, rinsing, and drying. Once turning on the faucet is consistent, the child would independently turn on the faucet and wet their hands, with help on the remaining steps.
Reinforcement (praise, a preferred activity, or another reward) is delivered after the child successfully completes whatever steps they’re currently responsible for. As more steps are added, the reinforcement moves further into the sequence. All previously mastered steps plus the new one must be completed correctly for the child to earn that reinforcement.
Backward Chaining
Backward chaining flips the order. The therapist assists with every step except the last one, which the child performs independently. Once that final step is mastered, the child takes over the second-to-last step as well, and so on, working backward toward the beginning of the task.
For handwashing, the therapist would guide the child through turning on the water, wetting, soaping, and rinsing, then let the child dry their hands on their own. Once drying is mastered, the child would independently rinse and dry. Eventually the child owns every step from start to finish.
This approach has a specific advantage: the child experiences task completion from the very first session. Finishing a task carries built-in reinforcement. Drying your hands means handwashing is done, putting on a jacket means you’re ready to go outside, placing the last block means the puzzle is finished. That sense of “I did it” can be powerfully motivating, especially for children who tend to disengage before reaching the end of longer routines.
Backward chaining tends to work well when the final step is naturally rewarding on its own, when the task is long enough that a child loses interest partway through, or when early success is important for keeping the child willing to participate as more steps get added.
Total Task Chaining
Total task chaining takes a different approach entirely. Instead of isolating individual steps, the child attempts the whole task from beginning to end during every session. The therapist provides prompts (verbal cues, physical guidance, demonstrations) at whatever steps the child needs help with, then gradually fades those prompts as the child becomes more independent at each link in the chain.
This method works best for children who already have some ability across multiple steps or who learn well by practicing a routine in its full context. It can also feel more natural, since the child always experiences the complete flow of the activity rather than stopping partway through. Reinforcement comes after the entire task is finished, with the child receiving support at any steps they haven’t yet mastered.
Choosing the Right Type
No single type of chaining is universally better. The choice depends on the child and the skill being taught. A few practical considerations guide the decision:
- Child’s existing skills: If a child can already do several steps in a sequence but struggles with certain ones, total task chaining lets them practice the whole routine while getting targeted help. If the skill is completely new, forward or backward chaining gives a more focused starting point.
- Task length: Longer chains with many steps can be overwhelming all at once. Breaking them into forward or backward sequences lets the child build confidence gradually.
- Motivation and engagement: Children who get frustrated or lose interest before finishing may do better with backward chaining, since they get the satisfaction of completing the task right away. Children who are motivated by “starting” something new may respond well to forward chaining.
- Natural reinforcement: When the last step of a task produces something the child wants (like eating a snack after preparing it), backward chaining connects effort to reward quickly.
What Chaining Looks Like Day to Day
In practice, chaining is used across a wide range of daily living skills: brushing teeth, tying shoes, making a simple meal, cleaning up toys, following a morning routine, or completing a classroom assignment. It also applies to social and communication sequences, like greeting someone (making eye contact, waving, saying hello) or asking for help (identifying the problem, approaching a person, making a request).
Sessions typically involve repeated practice of the targeted steps, with the therapist adjusting how much assistance they provide based on the child’s progress. A child might need hand-over-hand guidance at first, then just a verbal reminder, and eventually no help at all. This gradual reduction of support is called prompt fading, and it’s built into all three types of chaining.
Progress is tracked step by step. A therapist records which links in the chain the child completes independently and which still require prompts. A step is generally considered mastered when the child performs it correctly and independently across multiple sessions. The timeline varies widely depending on the child and the complexity of the task. Some children master a full chain in a few weeks, while others may need months of consistent practice.
The goal is always the same: a child who can perform a meaningful, real-world skill from start to finish without help. Chaining makes that possible by respecting that complex behaviors aren’t learned all at once. They’re built one step at a time.