Fundamental skill

Fundamental skills are a subset of skills in The Sims 4 that was introduced in the patch 142 update. Fundamentals are basically similar to skills, except that these skills are exclusively for toddlers and children.

Toddler skills

Toddlers in The Sims 4 can learn five fundamentals:

• Communication: "Talking is a huge step for any Toddler. Communication skill teaches Toddlers advanced socials. Improve it by talking with others, and studying advanced Flash Cards." They can learn communication via Flash Cards (Taught by the parent or carer), Talking with Teddies or other Sims and using their Toddler Tablet watching Toddler Videos.
• Imagination: "Toddlers with Imagination play with their own world. Imagination skill teaches Toddlers to read and create fantastical worlds with their toys. Gain Imagination skill by playing with Toys and Dolls, listening to music, or looking at Toddler Books." They can learn Imagination by playing with doll houses, toys, using their Tablet playing Draw with Llama, watching the TV and reading with a parent or by themselves.
• Movement: "Toddlers who focus on Movement really get around. Movement skill helps toddlers walk faster, run, climb stairs and dance, dance, dance. Improve it by walking around, building with Nesting Blocks, dancing, or via Play wrestling with adults." They can learn this skill by walking around, playing with adults, dancing, playing with blocks, playing Blicblock Baby on their Toddler Tablet and climbing stairs.
• Thinking: "Thinking Skill helps toddlers throw fewer tantrums and be more capable of taking care of themselves. It reduces defiance, and helps to solve needs. Thinking Skill is improved by being curious, or by playing with Flash Cards, Nesting Blocks, or the Tablet." Toddlers enhance their thinking skill by using the Flashcards with a Sim, using ‘what’s this?’ on items, using the Blocks to make shapes and playing on the tablet game Play SimShape.
• Potty: "Toilet training makes dirty diapers a thing of the past. Potty skill teaches toddlers to use the Potty Chair. Improve it by having an adult Train the toddler."

Below is a matrix that summarises the interactions and abilities toddlers get when they advance to a particular skill level. Toddlers can attain other interactions depending on their traits.

Level	Communication	Imagination	Movement	Thinking	Potty
2	hugging and hitting interactions learning animals via flash cards	looking at pictures in toddler books playing with the dollhouse with others	climbing stairs wrestling with adults	learning shapes via nesting blocks defying parents less often	using the potty chair without supervision; however the toddler will still wet his/her/it diapers when bladder motive is low
3	talking about toys, trucks, nonsense and yell	naming toys, dolls, and stuffed animals	walking faster dancing to music	learning numbers through flash cards sleeping better (fewer nightmares)	using the potty chair automatically when bladder motive is low (unless full autonomy is disabled or there is no potty chair available)
4	talking about parties and favourite animals telling knock knock jokes	reading toddler books	running building towers	asking 'Why' to other Sims stopping splashing at toilet	--not applicable--
5	telling (normal) stories and goofy stories talking about dinosaurs	viewing art	climbing stairs better	sleeping much better through night (almost no nightmares) defying parents much less often	--not applicable--

Toddler skills correspond to child skills. This means that if a toddler ages up with certain skill levels, it will result in improvements in the child skills they correspond to.

Toddler Skill Level	Child Skill Level Completed (and % left to next level)
1	-none-
2	1 and 45% of next level (55% to level 2)
3	1 and 90% of next level (10% to level 2)
4	2 and 44% of next level (56% to level 3)
5	2 and 94% of next level (6% to level 3)

Toddler Skill	Child Skill
Communication	Social
Imagination	Creativity
Movement	Motor
Thinking	Mental
Potty	--n/a--

For example, if a toddler ages up with a movement skill level 4, (s)he will start her child life stage at motor skill level 2 and 44% of the current motor skill bar completed (consequently, (s)he has 56% to go to get to motor skill level 3). If a toddler has reached at least level 3 in four skills, then (s)he will get a Happy Toddler bonus trait, which boosts all skill gains by 10%. If a toddler has reached the maximum level in all fundamentals (except Potty), then (s)he will get a Top Notch Toddler bonus trait, which boosts all skill and career gains by 25%.

Child skills

Child skills are special skills in The Sims 4 that are specially made for and built by children. There are four skills to build for each child Sim. These skills are required to build most other skills they would build prior to aging up to a teen. If the child ages up from a toddler that learned some skills, they will get a small boost in some of their skills upon aging up. Some adult skills are also available to children, depending on the packs that are installed.

Here is a list of all available skills and fundamentals for children:

Fundamentals

• Creativity
• Mental
• Motor
• Social

Skills

• Bowling
• Charisma
• Cross-stitch
• Fishing
• Horse Riding
• Knitting
• Logic
• Media production
• Medium
• Mischief
• Pet training
• Photography
• Piano
• Pipe organ
• Robotics
• Singing
• Skiing
• Snowboarding
• Vampire lore
• Video gaming
• Violin

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