
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
Given the functions $f(x)= \dfrac {2^{kx}}{4^{x}+1}$ and $g(x)= \dfrac {3-m}{m\cdot 2^{x}+2 \sqrt {2}}$, and $f(x)$ is an even function.  
$(1)$ Find the value of the real number $k$;  
$(2)$ If the graphs of $f(x)$ and $g(x)$ have exactly one point in common, find the range of the real number $m$.

Present the answer in LaTex format: \boxed{Your answer}
user