Sources & method

The sources we cite

These are the only sources the site cites. Activities link the ones that support them, and a claim that needs anything else is softened or left out. We paraphrase; we never copy checklist wording or invent a quote.

How strong is the evidence?

Parenting products often stretch real science into bigger promises. We sort each practice by what the evidence actually shows, and the library follows the sorting: strong practices are built in every day, sensible ones are used without fixed doses, and marketed ones are left out.

Every activity carries its own rating. In the current library, 24 rest on strong evidence, 79 on good support and 104 on expert consensus, and each one names the sources behind it.

The 0-4 learning-progress scale

Caregivers log what they see on a five-step scale. It is an educational tracking rubric for choosing the next activity, not a medical assessment, and it never produces a pass or a fail. A log can also record how much help was given (none, a gesture, a model or physical help) and the child’s mood.

Level 4 matters most. Stacking two blocks after a demonstration is different from stacking containers in the kitchen unprompted: using a skill in a new place, with a new person or a new material shows it is becoming flexible rather than tied to one setup.

How activities are designed

Every activity belongs to one to three of eight domains, the first being its main one:

• Cognitive
• Language
• Gross motor
• Fine motor
• Social-emotional
• Practical life
• Creativity & pretend
• Early concepts

Each activity then spells out the same parts, so a tired caregiver can run it from a phone:

• a corrected-age band, focus time (mostly 5 to 15 minutes), preparation time and household materials;
• three to six short steps, one easier version, and a ladder of harder steps in which each step changes only one thing;
• observable signs of progress, ideas for using the skill somewhere new, and a few words to model;
• concrete safety precautions, and an evidence rating with its sources.

The adult’s part follows one loop: observe what the child is doing, join in, model once, pause, respond to any attempt, then expand it (“ball” becomes “big ball”). Help comes in the smallest dose that works: wait first, then point or show, and guide hands only briefly. There are no flashcards, no quizzing, no screen time for the child, and no claims about brain boosting or IQ.

How adaptation works

The family plan reads the logs and changes one thing at a time:

• Easy and spontaneous: advance one variable, such as two blocks to three, never two to six.
• Successful after a model: repeat it and fade the help.
• Interested but struggling: switch to the easier version.
• Frustrated or not interested: stop, rest the activity and try another one later.

The first week of each four-week cycle is for watching, not advancing. A single hard day is never read as a delay. A concern that keeps showing up across ordinary daily life is different: write down examples and bring them to your pediatrician.

Milestones are monitoring, not screening

CDC milestones describe what most children (75% or more) can do by a given age. They are not a standardized screening tool, so our checklists cannot diagnose or rule out a delay. AAP recommends general developmental screening at 9, 18 and 30 months and autism screening at 18 and 24 months, done by your child’s doctor.

For children born early, AAP advises using corrected age (age since birth minus the weeks born early) for developmental comparison during the first two years, and CDC suggests it for children born more than 3 weeks early. Between two checklist ages we show the earlier checklist, with the next one as a horizon, never as a target. Corrected age does not explain away a real concern: if a child loses skills they had, is not meeting milestones, or you are worried, talk to your pediatrician. In the United States you can also contact your state’s Early Intervention program for children under 3 directly, without a doctor’s referral.

Safety rules that override everything

No activity is worth a choking, fall, drowning, poisoning or strangulation risk. These rules apply to every page and every plan:

• Objects must be too large to fit in a child’s mouth, with no small or loose parts; check toys and household items for damage.
• Never use water beads. The U.S. Consumer Product Safety Commission has warned about serious injuries when children swallow them.
• Keep button and coin batteries, and any device whose battery cover a child could open, out of reach: a swallowed battery can cause severe internal injury.
• Any water, even a shallow basin, needs an adult within arm’s reach the whole time, not checking in now and then. Empty containers right after.
• Keep obstacle courses at floor level and supervise climbing closely.
• No cords, ribbons or strings that could wrap around a neck.
• Food, cups and spoons only while the child is seated and watched; art materials only if age-appropriate and non-toxic.

What this site does not do

It does not diagnose, screen or treat, and it is not a substitute for your child’s doctor or therapist. It names no products or brands. Activities are a starting point that you adapt to your child, and an adult supervises every one of them.

You can try the method in the free family plan, which runs these activities across each caregiver’s part of the day, or work out corrected age with the corrected age calculator. Spotted an error or a broken link? Please tell us through the contact page. Who runs the site is on the about page, and how family data is protected is in the privacy policy.